{"id":254,"date":"2023-06-23T05:53:04","date_gmt":"2023-06-23T05:53:04","guid":{"rendered":"https:\/\/physigeek.com\/cn\/%e6%91%a9%e6%93%a6%e7%b3%bb%e6%95%b0%e6%88%96%e6%91%a9%e6%93%a6%e7%b3%bb%e6%95%b0\/"},"modified":"2023-06-23T05:53:04","modified_gmt":"2023-06-23T05:53:04","slug":"%e6%91%a9%e6%93%a6%e7%b3%bb%e6%95%b0%e6%88%96%e6%91%a9%e6%93%a6%e7%b3%bb%e6%95%b0","status":"publish","type":"post","link":"https:\/\/physigeek.com\/cn\/%e6%91%a9%e6%93%a6%e7%b3%bb%e6%95%b0%e6%88%96%e6%91%a9%e6%93%a6%e7%b3%bb%e6%95%b0\/","title":{"rendered":"\u6469\u64e6\u7cfb\u6570\uff08\u6216\u6469\u64e6\u7cfb\u6570\uff09"},"content":{"rendered":"<p>\u672c\u6587\u89e3\u91ca\u4e86\u7269\u7406\u5b66\u4e2d\u7684\u6469\u64e6\u7cfb\u6570\uff08\u6216\u6469\u64e6\u7cfb\u6570\uff09\u662f\u4ec0\u4e48\u3002\u56e0\u6b64\uff0c\u60a8\u5c06\u4e86\u89e3\u5982\u4f55\u8ba1\u7b97\u6469\u64e6\u7cfb\u6570\u3001\u6469\u64e6\u7cfb\u6570\u7684\u7c7b\u578b\u4ee5\u53ca\u9010\u6b65\u89e3\u51b3\u7684\u7ec3\u4e60\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue-es-el-coeficiente-de-friccion\"><\/span>\u4ec0\u4e48\u662f\u6469\u64e6\u7cfb\u6570\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u6469\u64e6\u7cfb\u6570<\/strong>\uff0c\u4e5f\u79f0\u4e3a<strong>\u6469\u64e6\u7cfb\u6570<\/strong>\uff0c\u662f\u8868\u793a\u5f53\u4e00\u4e2a\u7269\u4f53\u5728\u53e6\u4e00\u4e2a\u7269\u4f53\u4e0a\u79fb\u52a8\u65f6\u4e24\u4e2a\u7269\u4f53\u8868\u9762\u4e4b\u95f4\u7684\u6469\u64e6\u529b\u7684\u7cfb\u6570\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u6469\u64e6\u7cfb\u6570\u7528\u4e8e\u8ba1\u7b97\u6469\u64e6\u529b\uff08\u6216\u6469\u64e6\u529b\uff09\uff0c\u6469\u64e6\u529b\u662f\u4f7f\u4e00\u4e2a\u7269\u4f53\u96be\u4ee5\u5728\u53e6\u4e00\u4e2a\u7269\u4f53\u4e0a\u79fb\u52a8\u7684\u529b\u3002\u6240\u4ee5\uff0c\u6469\u64e6\u7cfb\u6570\u8d8a\u9ad8\uff0c\u6469\u64e6\u529b\u5c31\u8d8a\u5927\u3002<\/p>\n<p>\u6469\u64e6\u7cfb\u6570\u662f\u65e0\u91cf\u7eb2\u7cfb\u6570\uff0c\u4e5f\u5c31\u662f\u8bf4\u5b83\u6ca1\u6709\u5355\u4f4d\u3002\u540c\u6837\uff0c\u5e0c\u814a\u5b57\u6bcd\u03bc\u4e5f\u5e38\u88ab\u7528\u4f5c\u8868\u793a\u6469\u64e6\u7cfb\u6570\u7684\u7b26\u53f7\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Formula-del-coeficiente-de-friccion\"><\/span>\u6469\u64e6\u7cfb\u6570\u516c\u5f0f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u6469\u64e6\u7cfb\u6570\u7b49\u4e8e\u6469\u64e6\u529b\uff08\u6216\u6469\u64e6\u529b\uff09\u4e0e\u6cd5\u5411\u529b\u4e4b\u6bd4\u3002\u56e0\u6b64\uff0c\u6469\u64e6\u7cfb\u6570\u662f\u901a\u8fc7\u6469\u64e6\u529b\u9664\u4ee5\u6cd5\u5411\u529b\u6765\u8ba1\u7b97\u7684\u3002<\/p>\n<p>\u6362\u53e5\u8bdd\u8bf4\uff0c<strong>\u6469\u64e6\u7cfb\u6570\u7684\u516c\u5f0f<\/strong>\u5982\u4e0b\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-2bee3710c7506bf8ff2456662a57f279_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\mu=\\cfrac{F_R}{N}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"59\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:5px\">\u91d1\u5b50\uff1a <\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:8px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-05d9eae892416bd34247a25207f8b718_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\mu\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"11\" style=\"vertical-align: -4px;\"><\/p>\n<p>\u662f\u6469\u64e6\u7cfb\u6570\uff0c\u6ca1\u6709\u5355\u4f4d\u3002 <\/span><\/li>\n<li style=\"margin-bottom:8px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-5b005ac29604de5f2904d2da7ade0238_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_R\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"22\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u662f<a href=\"https:\/\/physigeek.com\/cn\/\u6469\u64e6\u529b\u6216\u6469\u64e6\u529b\/\">\u6469\u64e6\u529b<\/a>\uff0c\u4ee5\u725b\u987f\u8868\u793a\u3002<\/span><\/li>\n<li><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-7354bae77b50b7d1faed3e8ea7a3511a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"N\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"16\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u662f\u6cd5\u5411\u529b\uff0c\u4ee5\u725b\u987f\u8868\u793a\u3002<\/span><\/li>\n<\/ul>\n<p>\u8bf7\u8bb0\u4f4f\uff0c\u6469\u64e6\u7cfb\u6570\u662f\u4e00\u4e2a\u6ca1\u6709\u5355\u4f4d\u7684\u7cfb\u6570\uff0c\u56e0\u4e3a\u5b83\u662f\u901a\u8fc7\u5c06\u4e24\u4e2a\u5177\u6709\u76f8\u540c\u5355\u4f4d\u7684\u91cf\u76f8\u9664\u6765\u8ba1\u7b97\u7684\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Coeficiente-de-friccion-estatico-y-dinamico\"><\/span>\u9759\u6469\u64e6\u7cfb\u6570\u548c\u52a8\u6469\u64e6\u7cfb\u6570<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u6469\u64e6\u529b\u7684\u5927\u5c0f\u53d6\u51b3\u4e8e\u8eab\u4f53\u662f\u9759\u6b62\u8fd8\u662f\u8fd0\u52a8\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u80fd\u5c1d\u8bd5\u62d6\u52a8\u4e00\u4e2a\u975e\u5e38\u91cd\u7684\u7269\u4f53\uff0c\u4e00\u5f00\u59cb\u5f88\u96be\u79fb\u52a8\u5b83\uff0c\u4f46\u662f\u4e00\u65e6\u60a8\u8bbe\u6cd5\u7a0d\u5fae\u79fb\u52a8\u7269\u4f53\uff0c\u7ee7\u7eed\u62d6\u52a8\u7269\u4f53\u5c31\u4f1a\u66f4\u5bb9\u6613\u3002<\/p>\n<p>\u4e8b\u5b9e\u4e0a\uff0c\u4e00\u822c\u6765\u8bf4\uff0c\u7269\u4f53\u9759\u6b62\u65f6\u7684\u6469\u64e6\u529b\u5927\u4e8e\u7269\u4f53\u8fd0\u52a8\u65f6\u7684\u6469\u64e6\u529b\u3002\u56e0\u6b64\uff0c\u6469\u64e6\u529b\u6709\u4e24\u79cd\u7c7b\u578b\uff1a<\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:15px\"><span style=\"color:#101010;font-weight: normal;\"><strong>\u9759\u6469\u64e6\u529b<\/strong>\uff1a\u8fd9\u662f\u7269\u4f53\u5c1a\u672a\u8fd0\u52a8\u65f6\u4f5c\u7528\u7684\u6469\u64e6\u529b\u3002<\/span><\/li>\n<li><span style=\"color:#101010;font-weight: normal;\"><strong>\u52a8\u6001\uff08\u6216\u52a8\u80fd\uff09\u6469\u64e6\u529b<\/strong>\uff1a\u8fd9\u662f\u8eab\u4f53\u5df2\u7ecf\u5f00\u59cb\u8fd0\u52a8\u65f6\u4ea7\u751f\u7684\u6469\u64e6\u529b\u3002<\/span><\/li>\n<\/ul>\n<p>\u56e0\u6b64\uff0c\u6469\u64e6\u7cfb\u6570\u4e5f\u6709\u4e24\u79cd\u7c7b\u578b\uff1a<\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:15px\"><span style=\"color:#101010;font-weight: normal;\"><strong>\u9759\u6469\u64e6\u7cfb\u6570\uff08\u03bc <sub>E<\/sub> \uff09<\/strong> \uff1a\u7528\u4e8e\u8ba1\u7b97\u9759\u6469\u64e6\u529b\u3002\u5b83\u8868\u793a\u8fd0\u52a8\u5c1a\u672a\u5f00\u59cb\u65f6\uff0c\u5373\u9759\u6b62\u65f6\u4e24\u4e2a\u7269\u4f53\u8868\u9762\u4e4b\u95f4\u7684\u6469\u64e6\u529b\u3002<\/span><\/li>\n<li><span style=\"color:#101010;font-weight: normal;\"><strong>\u52a8\u6469\u64e6\u7cfb\u6570\uff08 <sub>\u03bcD<\/sub> \uff09<\/strong> \uff1a\u7528\u4e8e\u8ba1\u7b97\u52a8\u6469\u64e6\u529b\u3002\u5b83\u8868\u793a\u5f53\u4e00\u4e2a\u7269\u4f53\u5df2\u7ecf\u5728\u53e6\u4e00\u4e2a\u7269\u4f53\u4e0a\u6ed1\u52a8\u65f6\u4e24\u4e2a\u7269\u4f53\u8868\u9762\u4e4b\u95f4\u7684\u6469\u64e6\u529b\u3002<\/span><\/li>\n<\/ul>\n<p>\u6b64\u5916\uff0c\u6469\u64e6\u529b\u7684\u503c\u53d8\u5316\u5982\u4e0b\u56fe\u6240\u793a\uff1a <\/p>\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/graphique-force-statique-et-dynamique-friction.png\" alt=\"\u9759\u6469\u64e6\u529b\u548c\u52a8\u6469\u64e6\u529b\" class=\"wp-image-4356\" width=\"381\" height=\"261\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/graphique-force-statique-et-dynamique-friction-300x205.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/graphique-force-statique-et-dynamique-friction.png 725w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<p>\u9759\u6469\u64e6\u529b\u7b49\u4e8e\u8bd5\u56fe\u79fb\u52a8\u7269\u4f53\u6240\u65bd\u52a0\u7684\u529b\uff0c\u4f46\u65b9\u5411\u76f8\u53cd\u3002\u5176\u6700\u5927\u503c\u662f\u9759\u6469\u64e6\u7cfb\u6570\u4e0e\u6cd5\u5411\u529b\u4e4b\u95f4\u7684\u4e58\u79ef\u3002\u5f53\u65bd\u52a0\u7684\u529b\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u8eab\u4f53\u5f00\u59cb\u79fb\u52a8\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u5f53\u7269\u4f53\u5df2\u7ecf\u8fd0\u52a8\u65f6\uff0c\u65e0\u8bba\u65bd\u52a0\u7684\u529b\u7684\u503c\u662f\u591a\u5c11\uff0c\u52a8\u6469\u64e6\u529b\u90fd\u5177\u6709\u6052\u5b9a\u503c\uff0c\u8be5\u503c\u7b49\u4e8e\u52a8\u6469\u64e6\u7cfb\u6570\u4e0e\u6cd5\u5411\u529b\u4e4b\u95f4\u7684\u4e58\u79ef\u3002\u53e6\u5916\uff0c\u8be5\u503c\u7565\u4f4e\u4e8e\u9759\u6469\u64e6\u529b\u7684\u6700\u5927\u503c\u3002<\/p>\n<p>\u603b\u4e4b\uff0c\u9759\u6469\u64e6\u7cfb\u6570\u5927\u4e8e\u52a8\u6469\u64e6\u7cfb\u6570\u3002\u56e0\u6b64\uff0c\u5f00\u59cb\u79fb\u52a8\u7269\u4f53\u6bd4\u5728\u8fd0\u52a8\u5df2\u7ecf\u5f00\u59cb\u65f6\u79fb\u52a8\u5b83\u66f4\u56f0\u96be\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Valores-del-coeficiente-de-friccion\"><\/span>\u6469\u64e6\u7cfb\u6570\u503c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u5728\u4e0b\u8868\u4e2d\u60a8\u53ef\u4ee5\u770b\u5230\u9759\u6469\u64e6\u7cfb\u6570\u548c\u52a8\u6469\u64e6\u7cfb\u6570\u7684\u4e00\u4e9b\u5e38\u89c1\u503c\uff1a<\/p>\n<figure class=\"wp-block-table is-style-stripes\">\n<table>\n<thead>\n<tr>\n<th>\u63a5\u89e6\u9762<\/th>\n<th class=\"has-text-align-center\" data-align=\"center\">\u9759\u6469\u64e6\u7cfb\u6570\uff08\u03bc <sub>e<\/sub> \uff09<\/th>\n<th class=\"has-text-align-center\" data-align=\"center\">\u52a8\u6469\u64e6\u7cfb\u6570\uff08 <sub>\u03bcd<\/sub> \uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u94a2\u4e0a\u94dc<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.53<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 0.36<\/td>\n<\/tr>\n<tr>\n<td>\u94a2\u5bf9\u94a2<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.74<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 0.57<\/td>\n<\/tr>\n<tr>\n<td>\u94a2\u4e0a\u94dd<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.61<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 0.47<\/td>\n<\/tr>\n<tr>\n<td>\u6c34\u6ce5\u4e0a\u7684\u6a61\u80f6<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">1<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 0.8<\/td>\n<\/tr>\n<tr>\n<td>\u6728\u4e0a\u7684\u6728\u5934<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.25-0.5<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 0.2<\/td>\n<\/tr>\n<tr>\n<td>\u76ae\u9769\u4e0a\u7684\u6728\u5934<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.5<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 0.4<\/td>\n<\/tr>\n<tr>\n<td>\u7279\u6c1f\u9f99\u4e0a\u7684\u7279\u6c1f\u9f99<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.04<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 0.04<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>\u8bf7\u8bb0\u4f4f\uff0c\u8fd9\u4e9b\u503c\u53ef\u80fd\u4f1a\u6709\u6240\u4e0d\u540c\uff0c\u56e0\u4e3a\u5b83\u4eec\u53d6\u51b3\u4e8e\u8bb8\u591a\u56e0\u7d20\uff0c\u4f8b\u5982\u8868\u9762\u7c97\u7cd9\u5ea6\u3001\u6e29\u5ea6\u3001\u8868\u9762\u4e4b\u95f4\u7684\u76f8\u5bf9\u901f\u5ea6\u7b49\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejercicios-resueltos-del-coeficiente-de-friccion\"><\/span>\u89e3\u51b3\u4e86\u6469\u64e6\u7cfb\u6570\u95ee\u9898<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 class=\"wp-block-heading\">\u7ec3\u4e601<\/h3>\n<p>\u6211\u4eec\u6253\u7b97\u5728\u5e73\u9762\u4e0a\u79fb\u52a8\u4e00\u4e2a\u8d28\u91cf\u4e3a m=12 kg \u7684\u5757\uff0c\u5f53\u65bd\u52a0 35 N \u7684\u529b\u65f6\uff0c\u5b83\u5c31\u5f00\u59cb\u79fb\u52a8\u3002\u5730\u9762\u4e0e\u6728\u5757\u4e4b\u95f4\u7684\u9759\u6469\u64e6\u7cfb\u6570\u662f\u591a\u5c11\uff1f\u6570\u636e\uff1ag=10m\/s <sup>2<\/sup> \u3002 <\/p>\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-resolu-coefficient-de-frottement-statique.png\" alt=\"\u89e3\u51b3\u9759\u6469\u64e6\u7cfb\u6570\u95ee\u9898\" class=\"wp-image-4302\" width=\"285\" height=\"125\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-resolu-coefficient-de-frottement-statique-300x132.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-resolu-coefficient-de-frottement-statique.png 650w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__FFF8E1\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#FFF8E1\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u67e5\u770b\u89e3\u51b3\u65b9\u6848<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u9996\u5148\uff0c\u6211\u4eec\u7ed8\u5236\u4f5c\u7528\u5728\u5757\u4e0a\u7684\u6240\u6709\u529b\u7684\u56fe\u8868\uff1a <\/p>\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-force-de-friction-statique.png\" alt=\"\u9759\u6469\u64e6\u7cfb\u6570\u6216\u9759\u6469\u64e6\u7cfb\u6570\u7684\u6c42\u89e3\u7ec3\u4e60\" class=\"wp-image-4303\" width=\"269\" height=\"359\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-force-de-friction-statique-225x300.png 225w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-force-de-friction-statique.png 670w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\"><\/figure>\n<p class=\"has-text-align-left\">\u5728\u5e73\u8861\u6781\u9650\u60c5\u51b5\u4e0b\uff0c\u9a8c\u8bc1\u4ee5\u4e0b\u4e24\u4e2a\u65b9\u7a0b\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-318d3aaff48777c13e5ac24cb775f6b0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"N=P\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"54\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-b2d0fc9325264d9c3dceae21b529d2c5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_R=F\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"60\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u56e0\u6b64\uff0c\u6469\u64e6\u529b\u5c06\u7b49\u4e8e\u65bd\u52a0\u5230\u7269\u4f53\u4e0a\u7684\u6c34\u5e73\u529b\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-f433d79addb4c8cfc17c71cf797f4905_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_R=F=35 \\ N\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"123\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u53e6\u4e00\u65b9\u9762\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u91cd\u529b\u516c\u5f0f\u8ba1\u7b97\u6cd5\u5411\u529b\u7684\u503c\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-fdd5a10090733132a78410e57a059c2d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}N=P\\\\[3ex] N=m\\cdot g\\\\[3ex] N=12\\cdot 10 \\\\[3ex] N=120 \\ N\\end{array }\" title=\"Rendered by QuickLaTeX.com\" height=\"147\" width=\"88\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u6700\u540e\uff0c\u4e00\u65e6\u6211\u4eec\u77e5\u9053\u4e86\u6469\u64e6\u529b\u548c\u6cd5\u5411\u529b\u7684\u503c\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5e94\u7528\u9759\u6469\u64e6\u7cfb\u6570\u7684\u516c\u5f0f\u6765\u786e\u5b9a\u5176\u503c\uff1a <\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-20cdd7c8dcf9b6af55e1fe95eedf8da2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\mu_e=\\cfrac{F_R}{N}=\\cfrac{35}{120}=0.29\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"174\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u7ec3\u4e602<\/h3>\n<p>\u6211\u4eec\u5c06\u8d28\u91cf m=6 kg \u7684\u7269\u4f53\u653e\u7f6e\u5728\u503e\u659c 45\u00b0 \u7684\u5e73\u9762\u7684\u9876\u90e8\u3002\u5982\u679c\u7269\u4f53\u4ee54 m\/s <sup>2<\/sup>\u7684\u52a0\u901f\u5ea6\u5728\u659c\u9762\u4e0a\u6ed1\u52a8\uff0c\u5219\u659c\u9762\u8868\u9762\u4e0e\u7269\u4f53\u8868\u9762\u4e4b\u95f4\u7684\u52a8\u6469\u64e6\u7cfb\u6570\u662f\u591a\u5c11\uff1f\u6570\u636e\uff1ag=10m\/s <sup>2<\/sup> \u3002 <\/p>\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-resolu-coefficient-de-frottement-dynamique.png\" alt=\"\u6469\u64e6\u7cfb\u6570\u6216\u52a8\u6469\u64e6\u95ee\u9898\" class=\"wp-image-4281\" width=\"203\" height=\"205\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-resolu-coefficient-de-frottement-dynamique-298x300.png 298w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-resolu-coefficient-de-frottement-dynamique-150x150.png 150w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/probleme-resolu-coefficient-de-frottement-dynamique.png 479w\" sizes=\"auto, (max-width: 298px) 100vw, 298px\"><\/figure>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__FFF8E1\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#FFF8E1\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u67e5\u770b\u89e3\u51b3\u65b9\u6848<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u8981\u89e3\u51b3\u4efb\u4f55\u6709\u5173\u52a8\u529b\u5b66\u7684\u7269\u7406\u95ee\u9898\uff0c\u6211\u4eec\u9700\u8981\u505a\u7684\u7b2c\u4e00\u4ef6\u4e8b\u5c31\u662f\u7ed8\u5236\u81ea\u7531\u4f53\u56fe\u3002\u56e0\u6b64\uff0c\u4f5c\u7528\u5728\u7cfb\u7edf\u4e0a\u7684\u6240\u6709\u529b\u662f\uff1a <\/p>\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-force-de-friction-dynamique.png\" alt=\"\u89e3\u51b3\u4e86\u6469\u64e6\u7cfb\u6570\u6216\u52a8\u6469\u64e6\u7684\u7ec3\u4e60\" class=\"wp-image-4282\" width=\"248\" height=\"301\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-force-de-friction-dynamique-247x300.png 247w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/exercice-resolu-force-de-friction-dynamique.png 572w\" sizes=\"auto, (max-width: 247px) 100vw, 247px\"><\/figure>\n<p class=\"has-text-align-left\">\u5728\u8f74 1 \u7684\u65b9\u5411\uff08\u5e73\u884c\u4e8e\u659c\u9762\uff09\uff0c\u7269\u4f53\u6709\u52a0\u901f\u5ea6\uff0c\u4f46\u5728\u8f74 2 \u7684\u65b9\u5411\uff08\u5782\u76f4\u4e8e\u659c\u9762\uff09\uff0c\u7269\u4f53\u5904\u4e8e\u9759\u6b62\u72b6\u6001\u3002\u6839\u636e\u8fd9\u4e9b\u4fe1\u606f\uff0c\u6211\u4eec\u63d0\u51fa\u7cfb\u7edf\u529b\u7684\u65b9\u7a0b\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-d87a1ef6aaa3476891df5da8334cbc49_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P_1-F_R=m\\cdot a\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"124\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-6bdf90ed250934bf6cffbb110bc792a4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"P_2-N=0\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"90\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u56e0\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u4ece\u7b2c\u4e8c\u4e2a\u65b9\u7a0b\u8ba1\u7b97\u6cd5\u5411\u529b\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-59341555fe3d5fe315ceb1864547873b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}N=P_2\\\\[3ex]N=m\\cdot g\\cdot \\text{cos}(\\alpha) \\\\[3ex] N=6 \\cdot 10 \\cdot \\ text{cos}(45\u00ba)\\\\[3ex]N=42,43 \\ N\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"151\" width=\"185\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u53e6\u4e00\u65b9\u9762\uff0c\u6211\u4eec\u6839\u636e\u7b2c\u4e00\u4e2a\u65b9\u7a0b\u8ba1\u7b97\u6469\u64e6\u529b\uff08\u6216\u6469\u64e6\u529b\uff09\u7684\u503c\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-d8f2aff2a81d98ddcea04b1988282fda_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}P_1-F_R=m\\cdot a\\\\[3ex]F_R=P_1-m\\cdot a\\\\[3ex]F_R=m\\cdot g\\cdot \\text{sin} (\\alpha)-m\\cdot a\\\\[3ex]F_R=6\\cdot 10\\cdot \\text{sin}(45\u00ba)-6\\cdot 4\\\\[3ex]F_R=18.43 \\ N\\end{ array} \" title=\"Rendered by QuickLaTeX.com\" height=\"195\" width=\"204\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \u4e00\u65e6\u6211\u4eec\u77e5\u9053\u6cd5\u5411\u529b\u548c\u6469\u64e6\u529b\u7684\u503c\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528\u76f8\u5e94\u7684\u516c\u5f0f\u786e\u5b9a\u52a8\u6469\u64e6\u7cfb\u6570\uff1a <\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-31af78ef6e04fa66121d64aa3570f5a6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\mu_d=\\cfrac{F_R}{N}=\\cfrac{18.43}{43.43}=\\bm{0.42}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"187\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u89e3\u91ca\u4e86\u7269\u7406\u5b66\u4e2d\u7684\u6469\u64e6\u7cfb\u6570\uff08\u6216\u6469\u64e6\u7cfb\u6570\uff09\u662f\u4ec0\u4e48\u3002\u56e0\u6b64\uff0c\u60a8\u5c06\u4e86\u89e3\u5982\u4f55\u8ba1\u7b97\u6469\u64e6\u7cfb\u6570\u3001\u6469\u64e6\u7cfb\u6570\u7684\u7c7b\u578b\u4ee5\u53ca\u9010\u6b65\u89e3\u51b3\u7684 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/physigeek.com\/cn\/%e6%91%a9%e6%93%a6%e7%b3%bb%e6%95%b0%e6%88%96%e6%91%a9%e6%93%a6%e7%b3%bb%e6%95%b0\/\"> <span class=\"screen-reader-text\">\u6469\u64e6\u7cfb\u6570\uff08\u6216\u6469\u64e6\u7cfb\u6570\uff09<\/span> \u67e5\u770b\u5168\u6587 &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","footnotes":""},"categories":[5],"tags":[],"class_list":["post-254","post","type-post","status-publish","format-standard","hentry","category-5"],"yoast_head":"<!-- This site is optimized 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