{"id":23816,"date":"2021-09-08T00:31:22","date_gmt":"2021-09-07T19:01:22","guid":{"rendered":"https:\/\/learnsteer.sasnaka.org\/science\/?p=23816"},"modified":"2022-01-27T20:55:04","modified_gmt":"2022-01-27T15:25:04","slug":"02-03-00-%e0%b6%9d%e0%b6%bb%e0%b7%8a%e0%b7%82%e0%b6%ab%e0%b6%ba","status":"publish","type":"post","link":"https:\/\/learnsteer.sasnaka.org\/science\/advanced-level-science\/02-03-00-%e0%b6%9d%e0%b6%bb%e0%b7%8a%e0%b7%82%e0%b6%ab%e0%b6%ba\/","title":{"rendered":"02.03.00 &#8211; \u0d9d\u0dbb\u0dca\u0dc2\u0dab\u0dba"},"content":{"rendered":"\r\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-block-buttons-is-layout-flex\">\r\n<div class=\"wp-block-button is-style-shadow\"><a class=\"wp-block-button__link\" style=\"border-radius: 15px\" href=\"https:\/\/drive.google.com\/uc?export=download&amp;id=1a1o6YRRCS71WhxsPwGZSTZ9F_lP1Kl8e\" target=\"_blank\" rel=\"noreferrer noopener\">\u0db4\u0dcf\u0da9\u0db8\u0dda \u0dc3\u0da7\u0dc4\u0db1 Download \u0d9a\u0dbb\u0d9c\u0db1\u0dca\u0db1.<\/a><\/div>\r\n<\/div>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\"><strong>\u0dc4\u0dd0\u0db3\u0dd2\u0db1\u0dca\u0dc0\u0dd3\u0db8 <\/strong><\/h2>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>\u0db4\u0dd8\u0dc2\u0dca\u0da8\u0dba\u0d9a\u0dca \u0db8\u0dad \u0da0\u0dbd\u0dd2\u0dad \u0dc0\u0db1 \u0dc4\u0ddd\u00a0 \u0da0\u0dbd\u0dd2\u0dad\u0dc0\u0db1 \u0d8b\u0dad\u0dca\u0dc3\u0dcf\u0dc4 \u0d9a\u0dbb\u0db1 \u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0\u0d9a \u0db4\u0dd8\u0dc2\u0dca\u0da8\u0dba\u0dd9\u0db1\u0dca\u00a0 \u0d87\u0dad\u0dd2 \u0d9a\u0dbb\u0db1 \u0db4\u0dca\u200d\u0dbb\u0dad\u0dd2\u0d9a\u0dca\u200d\u0dbb\u0dd2\u0dba\u0dcf\u0dc0 \u0db4\u0dd8\u0dc2\u0dca\u0da8\u0dba \u0d86\u0db1\u0dad\u0dc0 \u0d9a\u0dca\u200d\u0dbb\u0dd2\u0dba\u0dcf\u0d9a\u0dbb\u0dba\u0dd2 \u0db1\u0db8\u0dca \u0d91\u0dc0\u0dd0\u0db1\u0dd2 \u0db4\u0dd8\u0dc2\u0dca\u0da8\u0dba\u0d9a\u0dca \u0dbb\u0dc5\u0dd4 \u0db4\u0dd8\u0dc2\u0dca\u0da8\u0dba\u0d9a\u0dca \u0db1\u0db8\u0dca \u0dc0\u0dda.<\/li>\r\n<li>\u0db8\u0dd9\u0dc0\u0dd0\u0db1\u0dd2 \u0dbb\u0dc5\u0dd4 \u0db4\u0dd8\u0dc2\u0dca\u0da7\u0dba\u0d9a\u0dd2\u0db1\u0dca \u0d87\u0dad\u0dd2\u0d9a\u0dbb\u0db1 \u0db4\u0dca\u200d\u0dbb\u0dad\u0dd2\u0d9a\u0dca\u200d\u0dbb\u0dd2\u0dba\u0dcf\u0dc0 \u0db4\u0dd8\u0dc2\u0dca\u0da8\u0dba \u0d94\u0dc3\u0dca\u0dc3\u0dd9 \u0dc4\u0dcf \u0db4\u0dd8\u0dc2\u0dca\u0da8\u0dba\u0da7 \u0dbd\u0db8\u0dca\u0db7\u0d9a\u0dc0 \u0dc0\u0dd2\u0db7\u0dda\u0daf\u0db1\u0dba \u0d9a\u0dbd \u0dc0\u0dd2\u0da7 \u0db4\u0dd8\u0dc2\u0dca\u0da8\u0dba \u0d94\u0dc3\u0dca\u0dc3\u0dd9 \u0db4\u0dc0\u0dad\u0dd2\u0db1\u00a0 \u0dc3\u0d82\u0dbb\u0da0\u0d9a\u0dba \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba \u0dbd\u0dd9\u0dc3\u0dad\u0dca \u0d8a\u0da7 \u0dbd\u0db8\u0dca\u0db7\u0d9a \u0dc3\u0d82\u0dbb\u0da0\u0d9a\u0dba \u0d85\u0db7\u0dd2\u0dbd\u0db8\u0dca\u0db6 \u0db4\u0dca\u200d\u0dbb\u0dad\u0dd2\u0d9a\u0dca\u200d\u0dbb\u0dd2\u0dba\u0dcf\u0dc0 \u0dbd\u0dd9\u0dc3\u0dad\u0dca \u0dc4\u0dd0\u0daf\u0dd2\u0db1\u0dca\u0dc0\u0dda.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex\">\r\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\r\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"241\" height=\"137\" class=\"wp-image-12606\" src=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-67.png\" alt=\"\" srcset=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-67.png 241w, https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-67-150x85.png 150w\" sizes=\"(max-width: 241px) 100vw, 241px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\r\n<ul class=\"td-arrow-list wp-block-list\">\r\n<li>R = \u0d85\u0db7\u0dd2\u0dbd\u0db8\u0dca\u0db6 \u0db4\u0dca\u200d\u0dbb\u0dad\u0dd2\u0d9a\u0dca\u200d\u0dbb\u0dd2\u0dba\u0dcf\u0dc0<\/li>\r\n<li>W = \u0db6\u0dbb<\/li>\r\n<li>P = \u0dba\u0ddc\u0daf\u0db1 \u0db6\u0dbd\u0dba<\/li>\r\n<li>F = \u0d87\u0dad\u0dd2\u0dc0\u0dd9\u0db1 \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>\u0dbb\u0dd6\u0db4\u0dba\u0dd9 \u0d86\u0d9a\u0dcf\u0dbb\u0dba\u0da7 \u0d9a\u0dca\u200d\u0dbb\u0db8\u0dba\u0dd9\u0db1\u0dca \u0dc0\u0dd0\u0da9\u0dd2\u0dc0\u0db1 p \u0db6\u0dbd\u0dba\u0d9a\u0dca \u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0\u0da7 \u0dba\u0dd9\u0daf\u0dd4\u0dc0\u0ddc\u0dad\u0dca \u0dba\u0db8\u0dca \u0d85\u0dc0\u0dc3\u0dca\u0dae\u0dcf\u0dc0\u0d9a \u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0 \u0da0\u0dbd\u0dd2\u0dad \u0dc0\u0dda.<\/li>\r\n<li>\u0db8\u0dd9\u0db8 \u0d85\u0dc0\u0dc3\u0dca\u0dae\u0dcf\u0dc0 \u0d91\u0dbd\u0db6\u0dd9\u0db1 \u0dad\u0dd9\u0d9a\u0dca \u0db6\u0dbd\u0dba \u0dc0\u0dd0\u0da9\u0dd2 \u0dc0\u0db1 \u0dc0\u0dd2\u0da7 \u0d8a\u0da7 \u0dc3\u0db8\u0dcf\u0db1\u0dc0 \u0dc4\u0dcf \u0db4\u0dca\u200d\u0dbb\u0dad\u0dd2\u0dc0\u0dd2\u0dbb\u0dd4\u0daf\u0dca\u0db0\u0dc0 \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba\u0daf \u0d9a\u0dca\u200d\u0dbb\u0db8\u0dba\u0dd9\u0db1\u0dca \u0dc0\u0dd0\u0da9\u0dd2 \u0dc0\u0dda.<\/li>\r\n<li>\u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0 \u0da0\u0dbd\u0dd2\u0dad \u0dc0\u0dd3\u0db8 \u0d85\u0dbb\u0db9\u0db1\u0dca\u0db1\u0dda P&gt;F \u0dc0\u0dd6 \u0dc0\u0dd2\u0da7\u0daf\u0dd3\u0dba. \u0db8\u0dd9\u0dba\u0dd2\u0db1\u0dca \u0dc4\u0dd0\u0d9f\u0dd9\u0db1\u0dca\u0db1\u0dda P \u0dc3\u0db8\u0d9f F \u0dba\u0db8\u0dca \u0d85\u0d9c\u0dba\u0d9a\u0dca \u0daf\u0d9a\u0dca\u0dc0\u0dcf \u0db4\u0db8\u0dab\u0d9a\u0dca \u0dc0\u0dd0\u0da9\u0dd2 \u0dc0\u0db1 \u0db6\u0dc0\u0dba\u0dd2.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong><strong>\u0dc3\u0dca\u0dae\u0dd2\u0dad\u0dd2\u0d9a \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba <\/strong><\/strong><\/h3>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>\u0dbb\u0dc5\u0dd4 \u0db4\u0dd8\u0dc2\u0dca\u0da7\u0dba\u0d9a\u0dca \u0db8\u0dad \u0dbd\u0dd2\u0dc3\u0dca\u0dc3\u0dcf \u0dba\u0dcf\u0db8\u0da7 \u0d8b\u0dad\u0dca\u0dc3\u0dcf\u0dc4 \u0daf\u0dbb\u0db1 \u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0\u0d9a\u0dca \u0db8\u0dad \u0db6\u0dbd\u0db4\u0dcf\u0db1 \u0d8b\u0db4\u0dbb\u0dd2\u0db8 \u0db6\u0dbd\u0dba \u0dc3\u0dca\u0dae\u0dd2\u0dad\u0dd2\u0d9a \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba \u0db1\u0db8\u0dca\u0dc0\u0dda.<\/li>\r\n<li>\u0d91\u0db8 \u0db6\u0dbd\u0dba \u0dc1\u0dd6\u0db1\u0dca\u200d\u0dba \u0dc3\u0dd2\u0da7 \u0d8b\u0db4\u0dbb\u0dd2\u0db8 \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba (F<sub>c<\/sub>) \u0daf\u0d9a\u0dca\u0dc0\u0dcf\u00a0 \u0db4\u0dc0\u0dad\u0dd3.\u00a0 \u0dc3\u0dca\u0dae\u0dd2\u0dad\u0dd2\u0d9a \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba F \u0db1\u0db8\u0dca\u0dc0\u0dda . 0 &lt; F &lt; F<sub>c <\/sub>\u0dc0\u0dda.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong><strong><strong>\u0dc3\u0dd3\u0db8\u0dcf\u0d9a\u0dcf\u0dbb\u0dd3 \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba<\/strong><\/strong><\/strong><\/h3>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>\u0dbb\u0dc5\u0dd4 \u0db4\u0dd8\u0dc2\u0dca\u0da7\u0dba\u0d9a\u0dd2\u0db1\u0dca \u0d9c\u0ddc\u0da9\u0db1\u0d9c\u0dd9\u0db1 \u0d8b\u0db4\u0dbb\u0dd2\u0db8 \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba \u0db1\u0db8\u0dca \u0dc0\u0dda .\u00a0 \u0da0\u0dbd\u0dd2\u0dad \u0dc0\u0db1 \u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0\u0d9a\u0dca \u0db8\u0dad \u0d87\u0dad\u0dd2 \u0d9a\u0dbb\u0db1 \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba \u0d9c\u0dad\u0dd2\u0d9a \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db1\u0db8\u0dca \u0dc0\u0dda. \u00a0\u0d91\u0dba \u0dc3\u0dd3\u0db8\u0dcf\u0d9a\u0dcf\u0dbb\u0dd3 \u0d9d\u0dbb\u0dca\u0dc2\u0dab\u0dba\u0da7 \u0db6\u0ddc\u0dc4\u0ddd \u0dc0\u0dd2\u0da7 \u0dc3\u0db8\u0dcf\u0db1 \u0dba\u0dd0\u0dba\u0dd2 \u0d9c\u0db1\u0dd4 \u0dbd\u0dd0\u0db6\u0dda.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\"><strong><strong><strong>\u0d9d\u0dbb\u0dca\u0dc2\u0dab<\/strong><\/strong><\/strong> <strong><strong><strong>\u0db1\u0dd2\u0dba\u0db8 <\/strong><\/strong><\/strong><\/h2>\r\n\r\n\r\n\r\n<ol class=\"wp-block-list\">\r\n<li><strong>\u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba \u0dc3\u0dd0\u0db8\u0dc0\u0dd2\u0da7\u0db8 \u0da0\u0dbd\u0dd2\u0dad \u0dc0\u0db1 \u0daf\u0dd2\u0dc1\u0dcf\u0dc0\u0da7 \u0dc4\u0ddd \u0da0\u0dbd\u0dd2\u0dad \u0dc0\u0dd3\u0db8\u0da7 \u0d8b\u0dad\u0dca\u0dc3\u0dcf\u0dc4 \u0d9c\u0db1\u0dca\u0db1\u0dcf \u0daf\u0dd2\u0dc1\u0dcf\u0dc0\u0da7 \u0db4\u0dca\u200d\u0dbb\u0dad\u0dd2\u0dc0\u0dd2\u0dbb\u0dd4\u0daf\u0dca\u0db0\u0dc0 \u0d9a\u0dca\u200d\u0dbb\u0dd2\u0dba\u0dcf \u0d9a\u0dbb\u0dba\u0dd2.<\/strong><\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"202\" height=\"138\" class=\"wp-image-12608\" src=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-69.png\" alt=\"\" srcset=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-69.png 202w, https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-69-150x102.png 150w\" sizes=\"(max-width: 202px) 100vw, 202px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<ol class=\"wp-block-list\" start=\"2\">\r\n<li><strong>\u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0\u0d9a\u0dca \u0db8\u0dad \u0d9a\u0dca\u200d\u0dbb\u0dd2\u0dba\u0dcf\u0d9a\u0dbb\u0db1 \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba \u0dba\u0db8\u0dca \u0dc3\u0dd3\u0db8\u0dcf\u0dc0\u0d9a\u0dca \u0daf\u0d9a\u0dca\u0dc0\u0dcf \u0dba\u0ddc\u0daf\u0db1 \u0db6\u0dbd\u0dba\u0da7 \u0dc3\u0db8\u0dcf\u0db1\u00a0 \u0dc0\u0dda. \u0db8\u0dd9\u0db8 \u0dc3\u0dd3\u0db8\u0dcf\u0dc0 \u0dc3\u0dd3\u0db8\u0dcf\u0d9a\u0dcf\u0dbb\u0dd3 \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba \u0db1\u0db8\u0dca \u0dc0\u0dda.<\/strong><\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n<div class=\"wp-block-image td-caption-align-center\">\r\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"231\" height=\"144\" class=\"wp-image-12610\" src=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-71.png\" alt=\"\" srcset=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-71.png 231w, https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-71-150x94.png 150w\" sizes=\"(max-width: 231px) 100vw, 231px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p class=\"has-text-align-center\"><em>F \u2264 F<\/em><sub>\u0dc3\u0dd3\u0db8\u0dcf<\/sub><\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>\u0dc3\u0dd3\u0db8\u0dcf\u0d9a\u0dcf\u0dbb\u0dd3 \u0d85\u0dc0\u0dc3\u0dca\u0dae\u0dcf\u0dc0\u0da7 \u0db4\u0dd9\u0dbb \u0d85\u0dc0\u0dc3\u0dca\u0dae\u0dcf\u0dc0\u0da7\u00a0\u0dad\u0dd2\u0dbb\u0dc3\u0dca \u0db6\u0dbd \u0dc3\u0db8\u0dad\u0dd4\u0dbd\u0dd2\u0dad\u0dba \u0dc3\u0dbd\u0d9a\u0db8\u0dd4,\r\n<ul>\r\n<li>P \u2013 F = 0<\/li>\r\n<li>P = F<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<ol class=\"wp-block-list\" start=\"3\">\r\n<li><strong>\u0dc3\u0dd3\u0db8\u0dcf\u0d9a\u0dcf\u0dbb\u0dd3 \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba\u0dda \u0d85\u0d9c\u0dba \u0dbb\u0dc5\u0dd4 \u0db4\u0dd8\u0dc2\u0dca\u0da7\u0dba \u0dc3\u0db8\u0d9c \u0dc3\u0dca\u0db4\u0dbb\u0dca\u0dc1 \u0dc0\u0dd3 \u0d87\u0dad\u0dd2 \u0d9a\u0dca\u0dc1\u0dda\u0dad\u0dca\u200d\u0dbb \u0db5\u0dbd\u0dba \u0db8\u0dad \u0dbb\u0db3\u0dcf \u0db4\u0dc0\u0dad\u0dd3.<\/strong><\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n<ol class=\"wp-block-list\" start=\"4\">\r\n<li><strong>\u0dc3\u0dd3\u0db8\u0dcf\u0d9a\u0dcf\u0dbb\u0dd3 \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba\u0dd9 \u0d85\u0d9c\u0dba \u0db4\u0dd8\u0dc2\u0dca\u0da8\u0dba\u0dd9\u0db1\u0dca \u0d9c\u0ddc\u0da9 \u0db1\u0dd0\u0d9c\u0dd9\u0db1 \u0d85\u0db7\u0dd2\u0dbd\u0db8\u0dca\u0db6\u00a0 \u0db4\u0dca\u200d\u0dbb\u0dad\u0dd2\u0d9a\u0dca\u200d\u0dbb\u0dd2\u0dba\u0dcf\u0dc0\u0da7\u00a0 \u0d85\u0db1\u0dd4\u0dbd\u0ddd\u0db8\u0dc0 \u0dc3\u0db8\u0dcf\u0db1\u0dd4\u0db4\u0dcf\u0dad\u0dd2\u0d9a<\/strong> <strong>\u0dc0\u0dda.<\/strong><\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n<ol class=\"wp-block-list\" start=\"5\">\r\n<li><strong>\u0da0\u0dbd\u0db1\u0dba \u0dc0\u0db1 \u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0\u0d9a\u0dca \u0db8\u0dad \u0dba\u0dd9\u0daf\u0dd9\u0db1 \u0db6\u0dbd\u0dba \u0d91\u0dba \u0da0\u0dbd\u0db1\u0dba \u0dc0\u0db1 \u00a0\u0db4\u0dca\u200d\u0dbb\u0dc0\u0dda\u0d9c\u0dba\u0dd9\u0db1\u0dca \u0dc3\u0dca\u0dc0\u0dcf\u0dba\u0d9a\u0dca\u0dad \u0dc0\u0dda.<\/strong><\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-2 wp-block-columns-is-layout-flex\">\r\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\r\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"188\" height=\"121\" class=\"wp-image-12613\" src=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-72.png\" alt=\"\" srcset=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-72.png 188w, https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-72-150x97.png 150w\" sizes=\"(max-width: 188px) 100vw, 188px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\r\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"205\" height=\"121\" class=\"wp-image-12614\" src=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-73.png\" alt=\"\" srcset=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-73.png 205w, https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-73-150x89.png 150w\" sizes=\"(max-width: 205px) 100vw, 205px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\r\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"188\" height=\"121\" class=\"wp-image-12615\" src=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-74.png\" alt=\"\" srcset=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-74.png 188w, https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-74-150x97.png 150w\" sizes=\"(max-width: 188px) 100vw, 188px\" \/><\/figure>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>3 \u0dc0\u0db1 \u0db1\u0dd2\u0dba\u0db8\u0dba\u0da7 \u0d85\u0db1\u0dd4\u0dc0 F<sub>\u0dc3\u0dd3\u0db8\u0dcf<\/sub> \u221d R \u0dc0\u0dda.<\/li>\r\n<li>\u0dc3\u0db8\u0dcf\u0db1\u0dd4\u0db4\u0dcf\u0dad\u0dd2\u0d9a \u0db1\u0dd2\u0dba\u0dad\u0dba \u0dc3\u0dca\u0db4\u0dbb\u0dca\u0dc1 \u0db4\u0dd8\u0dc2\u0dca\u0da8 2\u0dc4\u0dd2\u00a0 \u0dc3\u0dca\u0dc0\u0db7\u0dcf\u0dc0\u0dba \u0db8\u0dad \u0dbb\u0db3\u0dcf \u0db4\u0dc0\u0dad\u0dd2\u0db1 \u0d85\u0dad\u0dbb \u0d91\u0dba \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0dc3\u0d82\u0d9c\u0dd4\u0dab\u0d9a\u0dba (\u00b5) \u0dbd\u0dd9\u0dc3 \u0dc4\u0db3\u0dd4\u0db1\u0dca\u0dc0\u0db1\u0dd4 \u0dbd\u0dd0\u0db6\u0dda.<\/li>\r\n<li>\r\n<p>\u0d91\u0db1\u0db8\u0dca,<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p>\r\n\r\n<\/p>\r\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\">\r\n<span class=\"wp-katex-eq\" data-display=\"false\">\\begin{array}{l}F_\\text{\u0dc3\u0dd3\u0db8\u0dcf}=\\mu R\\\\\\frac{F_\\text{\u0dc3\u0dd3\u0db8\u0dcf}}R=\\mu\\end{array}<\/span>\r\n<\/div>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>\u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0\u0d9a \u0dc3\u0db8\u0dad\u0dd4\u0dbd\u0dd2\u0dad\u0dad\u0dcf\u0dc0 \u0dc3\u0db3\u0dc4\u0dcf \u0d85\u0dc0\u0dc1\u0dca\u200d\u0dba\u0dad\u0dcf\u0dc0<\/strong><\/h3>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"238\" height=\"177\" class=\"alignnone wp-image-28114 size-full\" src=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/09\/Pasted-into-02.03.00-\u0d9d\u0dbb\u0dca\u0dc2\u0dab\u0dba.png\" srcset=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/09\/Pasted-into-02.03.00-\u0d9d\u0dbb\u0dca\u0dc2\u0dab\u0dba.png 238w, https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/09\/Pasted-into-02.03.00-\u0d9d\u0dbb\u0dca\u0dc2\u0dab\u0dba-150x112.png 150w, https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/09\/Pasted-into-02.03.00-\u0d9d\u0dbb\u0dca\u0dc2\u0dab\u0dba-80x60.png 80w\" sizes=\"(max-width: 238px) 100vw, 238px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>\u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0\u0d9a \u0dc3\u0db8\u0dad\u0dd4\u0dbd\u0dd2\u0dad\u0dad\u0dcf\u0dc0\u00a0 \u0db4\u0dc0\u0dad\u0dd2\u0db1 \u0dad\u0dcf\u0d9a\u0dca P \u0dc0\u0dd0\u0da9\u0dd2 \u0dc0\u0db1 \u0dc0\u0dd2\u0da7 \u0d8a\u0da7 \u0dc3\u0db8\u0dcf\u0db1\u0dc0 F \u0daf \u0dc0\u0dd0\u0da9\u0dd2\u0dc0\u0dda.\r\n<ul>\r\n<li>\u0db1\u0db8\u0dd4\u0dad\u0dca P &gt; F<sub>\u0dc3\u0dd3\u0db8\u0dcf <\/sub>\u00a0\u0dc0\u0dd2\u0da7 \u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0 \u0da0\u0dbd\u0dd2\u0dad \u0dc0\u0dda.<\/li>\r\n<li>\u0d91\u0db1\u0db8\u0dca F<sub>\u0dc3\u0dd3\u0db8\u0dcf <\/sub>\u2265 P \u0dc0\u0dd2\u0da7 \u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0 \u0dc3\u0db8\u0dad\u0dd4\u0dbd\u0dd2\u0dad \u0dc0\u0dda.<\/li>\r\n<li>\u0dc3\u0db8\u0dad\u0dd4\u0dbd\u0dd2\u0dad \u0dc0\u0dd2\u0da7 P = F \u0dc0\u0dda.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<li>\u0d91\u0db1\u0db8\u0dca F<sub>\u0dc3\u0dd3\u0db8\u0dcf<\/sub> \u2265 F \u0dc0\u0dd2\u0da7 \u00a0\u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0 \u0dc3\u0db8\u0dad\u0dd4\u0dbd\u0dd2\u0dad \u0dc0\u0dda .<\/li>\r\n<li>\u0d91\u0db1\u0db8\u0dca, <span class=\"wp-katex-eq\" data-display=\"false\">\\begin{array}{l}\\frac{F_\\text{\u0dc3\u0dd3\u0db8\u0dcf}}R\\geq\\frac FR\\\\\\end{array}<\/span> \u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0 \u0dc3\u0db8\u0dad\u0dd4\u0dbd\u0dd2\u0dad \u0dc0\u0dda.<br \/><span class=\"wp-katex-eq\" data-display=\"false\">\\begin{array}{l}\\mu\\geq\\frac FR\\\\\\end{array}<\/span> \u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0 \u0dc3\u0db8\u0dad\u0dd4\u0dbd\u0dd2\u0dad \u0dc0\u0dda.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>\u0db8\u0dda \u0d85\u0db1\u0dd4\u0dc0 \u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0\u0d9a\u0dca \u0db1\u0ddc\u0dbd\u0dd2\u0dc3\u0dca\u0dc3\u0dd3\u0db8 \u0dc3\u0db3\u0dc4\u0dcf \u0d85\u0dc0\u0dc1\u0dca\u200d\u0dba\u0dba\u0dad\u0dcf\u0dc0 \u0dc0\u0db1\u0dca\u0db1\u0dd9, <span class=\"wp-katex-eq\" data-display=\"false\">\\begin{array}{l}\\mu\\geq\\frac FR\\\\\\end{array}<\/span> \u0dc0\u0dd3\u0db8\u0dba\u0dd2.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\">\u00a0<\/div>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>F \u0dc4\u0dd2 \u0daf\u0dd2\u0dc1\u0dcf\u0dc0 \u0dc4\u0dbb\u0dd2\u0dc4\u0dd0\u0da7\u0dd2 \u0db1\u0ddc\u0daf\u0db1\u0dca\u0db1\u0dcf \u0dc0\u0dd2\u0da7 \u0dc0\u0dd9\u0db1\u0dd4\u0dc0\u0da7 |F| \u0d9c\u0dad \u0dba\u0dd4\u0dad\u0dd4\u0dba.<\/li>\r\n<li>\u0db8\u0dda \u0d85\u0db1\u0dd4\u0dc0 \u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0\u0d9a \u0dc3\u0db8\u0dad\u0dd4\u0dbd\u0dd2\u0dad\u0dad\u0dcf\u0dc0 \u0dc3\u0db3\u0dc4\u0dcf \u0d85\u0dc0\u0dc1\u0dca\u200d\u0dba\u0dad\u0dcf\u0dc0 \u0dc0\u0db1\u0dca\u0db1\u0dda <span class=\"wp-katex-eq\" data-display=\"false\">\\begin{array}{l}\\mu\\geq\\frac FR\\\\\\end{array}<\/span> \u0dc0\u0dd3\u0db8\u0dba\u0dd2.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">\u0db1\u0dd2\u0daf\u0dc3\u0dd4\u0db1\u0dca &#8212;<\/h3>\r\n\r\n\r\n\r\n<ol class=\"wp-block-list\">\r\n<li>\u0db6\u0dbb W = 20N \u0dc0\u0dd6 \u0d9a\u0dbb\u0dad\u0dca\u0dad\u0dba\u0d9a\u0dca \u0dad\u0dd2\u0dbb\u0dc3\u0dca\u00a0 \u0db4\u0ddc\u0dbd\u0dc0\u0d9a\u0dca \u0db8\u0dad \u0db1\u0dc0\u0dad\u0dca\u0dc0\u0dcf \u0d87\u0dad. \u0d91\u0dba\u0da7,\r\n<ol>\r\n<li>P = 5 N \u0db6\u0dbd\u0dba\u0d9a\u0dca \u0dba\u0dd9\u0daf\u0dd6 \u0dc0\u0dd2\u0da7 \u0d91\u0dba \u0db1\u0dd2\u0dc1\u0dca\u0da0\u0dbd\u0dc0 \u0db4\u0dc0\u0dad\u0dd3 \u0db1\u0db8\u0dca,<\/li>\r\n<li>P = 10 N \u0db6\u0dbd\u0dba\u0d9a\u0dca \u0dba\u0dd9\u0daf\u0dd6 \u0dc0\u0dd2\u0da7 \u0d91\u0dba \u0db1\u0dd2\u0dc1\u0dca\u0da0\u0dbd\u0dc0 \u0db4\u0dc0\u0dad\u0dd3 \u0db1\u0db8\u0dca,<\/li>\r\n<li>P = 15 N \u0db6\u0dbd\u0dba\u0d9a\u0dca \u0dba\u0dd9\u0daf\u0dd6 \u0dc0\u0dd2\u0da7 \u0dba\u0db1\u0dca\u0dad\u0db8\u0dca \u0da0\u0dbd\u0db1\u0dba \u0dc0\u0dda \u0db1\u0db8\u0dca,<\/li>\r\n<li>P = 20 N \u0db6\u0dbd\u0dba\u0d9a\u0dca \u0dba\u0dd9\u0daf\u0dd6 \u0dc0\u0dd2\u0da7 \u0d91\u0dba 5 m s<sup>-2 <\/sup>\u0dad\u0dca\u0dc0\u0dbb\u0dab\u0dba\u0dd9\u0db1\u0dca \u0da0\u0dbd\u0db1\u0dba \u0dc0\u0dda \u0db1\u0db8\u0dca,<br \/>\u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd\u0dba F \u0dc3\u0ddc\u0dba\u0db1\u0dca\u0db1.<\/li>\r\n<li>(4) \u0dba\u0da7\u0dad\u0dda \u0d9c\u0dad\u0dd2\u0d9a \u0d9d\u0dbb\u0dca\u0dc1\u0db1 \u0dc3\u0d82\u0d9c\u0dd4\u0dab\u0d9a\u0dba \u0dc3\u0ddc\u0dba\u0db1\u0dca\u0db1.<\/li>\r\n<\/ol>\r\n<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"165\" height=\"125\" class=\"wp-image-12620\" src=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-78.png\" alt=\"\" srcset=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-78.png 165w, https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-78-150x114.png 150w, https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-78-80x60.png 80w\" sizes=\"(max-width: 165px) 100vw, 165px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<ol class=\"wp-block-list\">\r\n<li>F = 5 N<\/li>\r\n<li>F = 10 N<\/li>\r\n<li>F = 15 N<\/li>\r\n<li>\u00a0<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-3 wp-block-columns-is-layout-flex\">\r\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\r\n<ul class=\"wp-block-list\">\r\n<li>\u2191 \u0dc3\u0dd2\u0dbb\u0dc3\u0dca \u0db6\u0dbd \u0dc3\u0db8\u0dad\u0dd4\u0dbd\u0dd2\u0dad\u0dba \u0dc3\u0dbd\u0d9a\u0dcf,\r\n<ul>\r\n<li>R \u2013 W = 0<\/li>\r\n<li>R = W = 20 N<\/li>\r\n<li>F<sub>1<\/sub> = ma(F<sub>1<\/sub>= \u0db4\u0dca\u200d\u0dbb\u0d9a\u0dbb\u0dca\u0dc1\u0db1 \u0db6\u0dbd\u0dba)<\/li>\r\n<li>F<sub>1 <\/sub>= 2 \u00d7 5 = 10 N<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<\/div>\r\n\r\n\r\n\r\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\r\n<ul class=\"wp-block-list\">\r\n<li>\u2192 \u0dad\u0dd2\u0dbb\u0dc3\u0dca \u0db6\u0dbd \u0dc3\u0db8\u0dad\u0dd4\u0dbd\u0dd2\u0dad\u0dba \u0dc3\u0dbd\u0d9a\u0dcf,\r\n<ul>\r\n<li>P + F<sub>1 <\/sub>\u2013 F = 0<\/li>\r\n<li>20 + 10 \u2013 F = 0<\/li>\r\n<li>F = 30 N<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n<ol class=\"wp-block-list\" start=\"5\">\r\n<li>F = \u03bcR<br \/>30 = \u03bc \u00d7 20<br \/>\u03bc = 1.5<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n<p>(2) \u0dad\u0dd2\u0dbb\u0dc3\u0da7 60<sup>0<\/sup> \u0d86\u0db1\u0dad \u0db8\u0dcf\u0dbb\u0dca\u0d9c\u0dba\u0d9a 2 kg \u0dc3\u0dca\u0d9a\u0db1\u0dca\u0db0\u0dba \u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0\u0d9a\u0dca 10 m s<sup>-2<\/sup> \u0dad\u0dca\u0dc0\u0dbb\u0dab\u0dba\u0d9a\u0dd2\u0db1\u0dca\u00a0 \u0d9c\u0db8\u0db1\u0dca \u0d9a\u0dbb\u0dba\u0dd2. \u0d91\u0db8 \u0dad\u0dbd\u0dba \u0db8\u0dad \u0d9d\u0dbb\u0dca\u0dc1\u0db1 \u0dc3\u0d82\u0d9c\u0dd4\u0dab\u0d9a\u0dba \u0dc3\u0ddc\u0dba\u0db1\u0dca\u0db1.<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28904 \" src=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/09\/Pasted-into-02.03.00-\u0d9d\u0dbb\u0dca\u0dc2\u0dab\u0dba-1.png\" width=\"424\" height=\"457\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>\u0dad\u0dbd\u0dba\u0da7 \u0dbd\u0db8\u0dca\u0db7\u0d9a \u0db6\u0dbd\u0dba\u0db1\u0dca \u0dc3\u0dbd\u0d9a\u0dcf,<span class=\"wp-katex-eq\" data-display=\"false\">\\begin{array}{l}R\\;=\\;W\\cos30^\\circ\\\\R\\;=\\;20\\;\\times\\;\\frac{\\sqrt3}2\\\\R\\;=\\;10\\sqrt3N\\\\\\end{array}<\/span><\/p>\r\n\r\n\r\n\r\n<p>\u0dad\u0dbd\u0dba \u0daf\u0dd2\u0d9c\u0dda \u0d89\u0dc4\u0dc5\u0da7,<span class=\"wp-katex-eq\" data-display=\"false\">\\begin{array}{l}F\\;=\\;ma\\\\P\\;=2kg\\;\\times\\;10ms^{-2}\\\\P\\;=\\;20N\\end{array}<\/span><\/p>\r\n<div class=\"wp-block-columns\">\r\n<div class=\"wp-block-column\">\r\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\">\r\n<p>\u0dad\u0dbd\u0dba \u0daf\u0dd2\u0d9c\u0dda \u0db6\u0dbd\u0dba\u0db1\u0dca \u0dc3\u0dbd\u0d9a\u0dcf, <span class=\"wp-katex-eq\" data-display=\"false\">\\begin{array}{l}P\\;-W\\cos60-F=0\\\\F=20N-20\\times\\frac12\\\\F=10N\\end{array}<\/span><\/p>\r\n<\/div>\r\n<\/div>\r\n<div class=\"wp-block-column\">\r\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\">\r\n<span class=\"wp-katex-eq\" data-display=\"false\">\\begin{array}{l}F=\\mu R\\\\10=\\mu\\times10\\sqrt3\\\\\\mu=\\frac1{\\sqrt3}\\end{array}<\/span>\r\n<\/div>\r\n<\/div>\r\n<!-- \/wp:column --><\/div>\r\n<!-- \/wp:columns -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>(3) \u0daf\u0dd2\u0d9c 2a \u0dc0\u0db1 \u0db6\u0dbb w \u0dc0\u0db1 \u0dc3\u0db8\u0dcf\u0db1 AB \u0dc4\u0dcf BC \u0daf\u0da9\u0dd4 2\u0d9a\u0dca \u0dc4\u0dd2\u0daf\u0dd3 \u0dc3\u0dd4\u0da0\u0dbd \u0dbd\u0dd9\u0dc3 \u0dc3\u0db1\u0dca\u0daf\u0dd2 \u0d9a\u0dbb \u0d91\u0dba \u0dad\u0dd2\u0dbb\u0dc3\u0dca \u0dbb\u0dc5\u0dd4 \u0dad\u0dbd\u0dba\u0d9a\u0dca \u0db8\u0dad \u0dad\u0db6\u0dcf \u0d87\u0dad. \u0d91\u0d9a\u0dca \u0daf\u0dab\u0dca\u0da9\u0d9a\u0dca \u0dad\u0dd2\u0dbb\u0dc3\u0da7\u00a0 <span class=\"wp-katex-eq\" data-display=\"false\">\\theta<\/span> \u0d9a\u0ddd\u0dab\u0dba\u0d9a\u0dca \u0dc3\u0dcf\u0daf\u0db1 \u0d85\u0dad\u0dca\u200d\u0dbb \u0daf\u0dab\u0dca\u0da9\u0d9a\u0dca \u0dc4\u0dcf \u0dad\u0dbd\u0dba \u0d85\u0dad\u0dbb \u0dc0\u0dda. \u0db4\u0daf\u0dca\u0db0\u0dad\u0dd2\u0dba \u0dc3\u0db8\u0dad\u0dd4\u0dbd\u0dd2\u0dad\u0dc0 \u0db4\u0dc0\u0dad\u0dd3 \u00a0\u0db1\u0db8\u0dca,<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:katex\/display-block -->\r\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\">\r\n<p><span class=\"wp-katex-eq\" data-display=\"false\">\\mu\\geq\\frac{cot\\theta}2<\/span> \u0db6\u0dc0 \u0db4\u0dd9\u0db1\u0dca\u0dc0\u0db1\u0dca\u0db1.<\/p>\r\n<\/div>\r\n<!-- \/wp:katex\/display-block -->\r\n\r\n<!-- wp:image {\"align\":\"center\",\"id\":12626,\"sizeSlug\":\"large\"} -->\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"178\" height=\"133\" class=\"wp-image-12626\" src=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-81.png\" alt=\"\" srcset=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-81.png 178w, https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-81-150x112.png 150w, https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-81-80x60.png 80w\" sizes=\"(max-width: 178px) 100vw, 178px\" \/><\/figure>\r\n<\/div>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:columns -->\r\n<div class=\"wp-block-columns\"><!-- wp:column -->\r\n<div class=\"wp-block-column\"><!-- wp:paragraph -->\r\n<p>\u0db4\u0daf\u0dca\u0db0\u0dad\u0dd2\u0dba\u0da7 \u2191 <span class=\"wp-katex-eq\" data-display=\"false\">\\begin{array}{l}2R\\;=\\;2W\\\\R\\;=\\;W\\xrightarrow{}\\end{array}<\/span>(1)<\/p>\r\n<!-- \/wp:katex\/display-block --><\/div>\r\n<!-- \/wp:column -->\r\n\r\n<!-- wp:column -->\r\n<div class=\"wp-block-column\"><!-- wp:paragraph -->\r\n<p>BC\u00a0 \u0da7\u00a0 B \u0dc0\u0da7\u0dcf \u0d9d\u0dd6\u0dbb\u0dca\u0dab\u0dba \u0dc3\u0dd0\u0dbd\u0d9a\u0dd3\u0db8\u0dd9\u0db1\u0dca, <span class=\"wp-katex-eq\" data-display=\"false\">\\begin{array}{l}R\\times2a\\cos\\theta\\;=\\;W\\times a\\cos\\theta+F\\times2a\\sin\\theta\\\\2W\\cos\\theta=W\\cos\\theta+2F\\sin\\theta\\\\F=\\dfrac{W\\cos\\theta}{2\\sin\\theta}\\\\F=\\dfrac W2cot\\theta\\xrightarrow{}\\end{array}<\/span>(2)<\/p>\r\n<!-- \/wp:katex\/display-block -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>&nbsp;<\/p>\r\n<!-- \/wp:paragraph --><\/div>\r\n<!-- \/wp:column --><\/div>\r\n<!-- \/wp:columns -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>\u0db4\u0daf\u0dca\u0db0\u0dad\u0dd2\u0dba \u0dc3\u0db8\u0dad\u0dd4\u0dbd\u0dd2\u0dad\u0dc0 \u0db4\u0dc0\u0dad\u0dd2\u0db1 \u0db1\u0dd2\u0dc3\u0dcf, <span class=\"wp-katex-eq\" data-display=\"false\">\\mu\\geq\\frac FR<\/span> \u0dc0\u0dda.<\/p>\r\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\">\r\n<span class=\"wp-katex-eq\" data-display=\"false\">\\begin{array}{l}\\dfrac{(2)}{(1)}\\;=\\;\\dfrac FR\\;=\\;\\dfrac{\\displaystyle\\dfrac W2cot\\theta}W\\leq\\mu\\\\\\mu\\geq\\dfrac{cot\\theta}2\\end{array}<\/span>\r\n<p>&nbsp;<\/p>\r\n<\/div>\r\n<!-- \/wp:katex\/display-block -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3><strong>\u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0d9a\u0ddd\u0dab\u0dba (\u03b4)<\/strong><\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n<li>\u0d8b\u0db4\u0dbb\u0dd2\u0db8 \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0db6\u0dbd \u0db4\u0dc0\u0dad\u0dca\u0dc0\u0db1 \u0dc0\u0dd2\u0da7 \u0d91\u0db1\u0db8\u0dca \u0dc3\u0dd3\u0db8\u0dcf\u0d9a\u0dcf\u0dbb\u0dd3 \u0d9d\u0dbb\u0dca\u0dc1\u0dab \u0db6\u0dbd\u0dba \u0db6\u0dbd\u0db4\u0dcf\u0db1 \u0dc0\u0dd2\u0da7 \u0dc0\u0dc3\u0dca\u0dad\u0dd4\u0dc0\u0d9a\u0dca \u0db8\u0dad \u0db4\u0dd8\u0dc2\u0dca\u0da8\u0dba\u0db1\u0dca \u0d9c\u0ddc\u0da9\u0db1\u0d9c\u0db1\u0dd4 \u0dbd\u0db6\u0db1 \u0db4\u0dca\u200d\u0dbb\u0dad\u0dd2\u0d9a\u0dca\u200d\u0dbb\u0dd2\u0dba\u0dcf (S) \u0dc3\u0db8\u0dca\u0db4\u0dca\u200d\u0dbb\u0dba\u0dd4\u0d9a\u0dca\u0dad \u0d85\u0db7\u0dd2\u0dbd\u0db8\u0dca\u0db6\u0dba \u0dc3\u0db8\u0d9f \u0dc3\u0dcf\u0daf\u0db1 \u0d9a\u0ddd\u0dab\u0dba \u0dc0\u0dda.<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:image {\"align\":\"center\",\"id\":12628,\"sizeSlug\":\"large\"} -->\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"162\" height=\"142\" class=\"wp-image-12628\" src=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-83.png\" alt=\"\" srcset=\"https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-83.png 162w, https:\/\/learnsteer.sasnaka.org\/science\/wp-content\/uploads\/sites\/3\/2021\/03\/image-83-150x131.png 150w\" sizes=\"(max-width: 162px) 100vw, 162px\" \/><\/figure>\r\n<\/div>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n<li>\u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0dc3\u0d82\u0d9c\u0dd4\u0db1\u0d9a\u0dba (\u03bc) \u0dc4\u0dcf \u0d9d\u0dbb\u0dca\u0dc1\u0dab \u0d9a\u0ddd\u0dab\u0dba (\u03b4) \u0d85\u0dad\u0dbb \u0dc3\u0db8\u0dca\u0db6\u0db1\u0dca\u0daf\u0dad\u0dcf\u0dc0,\r\n<ul>\r\n<li>F<sub>\u0dc3\u0dd3\u0db8\u0dcf <\/sub>\u0dc4\u0dcf R \u0dc4\u0dd2 \u0dc3\u0db8\u0dca\u0db4\u0dca\u200d\u0dbb\u0dba\u0dd4\u0d9a\u0dca\u0dad\u0dba S \u0dba\u0dd0\u0dba\u0dd2 \u0d9c\u0db1\u0dd2\u0db8\u0dd4. S \u0dc4\u0dcf R \u0d85\u0dad\u0dbb \u0d9a\u0ddd\u0dab\u0dba \u03b4 \u0dba\u0dd0\u0dba\u0dd2 \u0d9c\u0db1\u0dd2\u0db8\u0dd4. \u0d91\u0dba \u0d9d\u0dbb\u0dca\u0dc2\u0dab \u0d9a\u0ddd\u0dab\u0dba\u0dba\u0dd2.<br \/><span class=\"wp-katex-eq\" data-display=\"false\">\\tan\\delta=\\frac{F_\\text{\u0dc3\u0dd3\u0db8\u0dcf}}R<\/span><\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:katex\/display-block -->\r\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\">\u00a0<\/div>\r\n<ul>\r\n<li>\u0db1\u0db8\u0dd4\u0dad\u0dca,\r\n<ul>\r\n<li>F<sub>\u0dc3\u0dd3\u0db8\u0dcf \u00a0<\/sub>= \u03bcR<\/li>\r\n<li><span class=\"wp-katex-eq\" data-display=\"false\">\\mu<\/span> = tan\u03b4<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:katex\/display-block -->\r\n\r\n<!-- wp:spacer -->\r\n<div class=\"wp-block-spacer\" style=\"height: 100px\" aria-hidden=\"true\">\u00a0<\/div>\r\n<!-- \/wp:spacer -->\r\n\r\n<!-- wp:buttons {\"contentJustification\":\"center\"} -->\r\n<div class=\"wp-block-buttons is-content-justification-center\"><!-- wp:button {\"borderRadius\":15,\"className\":\"is-style-shadow\",\"tdButtonSize\":\"normal\"} -->\r\n<div class=\"wp-block-button is-style-shadow td_btn_normal\"><a class=\"wp-block-button__link\" style=\"border-radius: 15px\" href=\"https:\/\/drive.google.com\/uc?export=download&amp;id=1a1o6YRRCS71WhxsPwGZSTZ9F_lP1Kl8e\" target=\"_blank\" rel=\"noreferrer noopener\">\u0db4\u0dcf\u0da9\u0db8\u0dda \u0dc3\u0da7\u0dc4\u0db1 Download \u0d9a\u0dbb\u0d9c\u0db1\u0dca\u0db1.<\/a><\/div>\r\n<!-- \/wp:button --><\/div>\r\n<!-- \/wp:buttons -->\r\n\r\n<!-- wp:spacer -->\r\n<div class=\"wp-block-spacer\" style=\"height: 100px\" aria-hidden=\"true\">\u00a0<\/div>\r\n<!-- \/wp:spacer -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>\u0d89\u0daf\u0dd2\u0dbb\u0dd2\u0dba\u0dda\u0daf\u0dd3 \u0db4\u0dca\u200d\u0dbb\u0dc1\u0dca\u0db1 \u0d87\u0dad\u0dd4\u0dbd\u0dad\u0dca \u0dc0\u0db1\u0dca\u0db1\u0dda \u0db8\u0dd9\u0dad\u0db1\u0da7\u0dba\u0dd2.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:buttons {\"contentJustification\":\"center\"} -->\r\n<div class=\"wp-block-buttons is-content-justification-center\"><!-- wp:button {\"borderRadius\":15,\"className\":\"is-style-shadow\",\"tdButtonSize\":\"normal\"} -->\r\n<div class=\"wp-block-button is-style-shadow td_btn_normal\"><a class=\"wp-block-button__link\" style=\"border-radius: 15px\" href=\"https:\/\/drive.google.com\/uc?id=1Et8V2zU47bJMKqgyV7zfhq1OvM8J6YG3&amp;export=download\" target=\"_blank\" rel=\"noreferrer noopener\">\u0dad\u0dc0\u0dad\u0dca \u0db4\u0dca\u200d\u0dbb\u0dc1\u0dca\u0db1 \u0db4\u0dd9\u0db1\u0dca\u0dc0\u0db1\u0dca\u0db1.<\/a><\/div>\r\n<!-- \/wp:button --><\/div>\r\n<!-- \/wp:buttons -->\r\n\r\n<!-- wp:spacer -->\r\n<div class=\"wp-block-spacer\" style=\"height: 100px\" aria-hidden=\"true\">\u00a0<\/div>\r\n<!-- \/wp:spacer -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>&nbsp;<\/p>\r\n<!-- \/wp:paragraph 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