{"id":248,"date":"2023-06-23T08:46:19","date_gmt":"2023-06-23T08:46:19","guid":{"rendered":"https:\/\/physigeek.com\/cn\/%e5%8a%a8%e6%91%a9%e6%93%a6%e7%b3%bb%e6%95%b0\/"},"modified":"2023-06-23T08:46:19","modified_gmt":"2023-06-23T08:46:19","slug":"%e5%8a%a8%e6%91%a9%e6%93%a6%e7%b3%bb%e6%95%b0","status":"publish","type":"post","link":"https:\/\/physigeek.com\/cn\/%e5%8a%a8%e6%91%a9%e6%93%a6%e7%b3%bb%e6%95%b0\/","title":{"rendered":"\u52a8\u6469\u64e6\u7cfb\u6570"},"content":{"rendered":"<p>\u672c\u6587\u89e3\u91ca\u4e86\u7269\u7406\u5b66\u4e2d\u52a8\u6469\u64e6\u7cfb\u6570\uff08\u6216\u52a8\u6469\u64e6\u7cfb\u6570\uff09\u662f\u4ec0\u4e48\u4ee5\u53ca\u5b83\u662f\u5982\u4f55\u8ba1\u7b97\u7684\u3002\u6b64\u5916\uff0c\u60a8\u8fd8\u5c06\u627e\u5230\u8ba1\u7b97\u52a8\u6469\u64e6\u7cfb\u6570\u7684\u5177\u4f53\u793a\u4f8b\uff0c\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u8be5\u6982\u5ff5\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue-es-el-coeficiente-de-friccion-dinamico\"><\/span>\u4ec0\u4e48\u662f\u52a8\u6469\u64e6\u7cfb\u6570\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u52a8\u6469\u64e6\u7cfb\u6570<\/strong>\uff0c\u6216<strong>\u79f0\u52a8\u6001\u6469\u64e6\u7cfb\u6570<\/strong>\uff0c\u662f\u8868\u793a\u4e24\u4e2a\u7269\u4f53\u5728\u53e6\u4e00\u4e2a\u7269\u4f53\u4e0a\u6ed1\u52a8\u65f6\u8868\u9762\u4e4b\u95f4\u6469\u64e6\u529b\u7684\u7cfb\u6570\u3002<\/p>\n<p>\u52a8\u6469\u64e6\u7cfb\u6570\u662f\u65e0\u91cf\u7eb2\u7cfb\u6570\uff0c\u5373\u6ca1\u6709\u5355\u4f4d\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u52a8\u6469\u64e6\u7cfb\u6570\u4e00\u822c\u7528\u7b26\u53f7<sub>\u03bcd<\/sub>\u8868\u793a\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Como-calcular-el-coeficiente-de-friccion-dinamico\"><\/span>\u5982\u4f55\u8ba1\u7b97\u52a8\u6469\u64e6\u7cfb\u6570<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u52a8\u6469\u64e6\u7cfb\u6570\u7b49\u4e8e\u52a8\u6469\u64e6\u529b\uff08\u6216\u6469\u64e6\u529b\uff09\u4e0e\u6cd5\u5411\u529b\u4e4b\u6bd4\u3002\u56e0\u6b64\uff0c\u52a8\u6469\u64e6\u7cfb\u6570\u662f\u901a\u8fc7\u52a8\u6469\u64e6\u529b\u9664\u4ee5\u6cd5\u5411\u529b\u6765\u8ba1\u7b97\u7684\u3002<\/p>\n<p>\u7b80\u800c\u8a00\u4e4b\uff0c<strong>\u52a8\u6469\u64e6\u7cfb\u6570\u7684\u8ba1\u7b97\u516c\u5f0f<\/strong>\u4e3a\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-62d652e0956ec70ea9543acea0e1f38f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\mu_d=\\cfrac{F_R}{N}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"67\" 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-8aa8c388a2134d7e66a2b64698de4e79_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\mu_d\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"19\" style=\"vertical-align: -4px;\"><\/p>\n<p>\u662f\u52a8\u6469\u64e6\u7cfb\u6570\uff0c\u65e0\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\u6469\u64e6\u529b\u6216\u52a8\u6469\u64e6\u529b\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<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejercicio-resuelto-del-coeficiente-de-friccion-dinamico\"><\/span>\u89e3\u51b3\u4e86\u52a8\u6469\u64e6\u7cfb\u6570\u7684\u7ec3\u4e60<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u73b0\u5728\u6211\u4eec\u77e5\u9053\u4e86\u52a8\u6469\u64e6\u7cfb\u6570\u7684\u5b9a\u4e49\u53ca\u5176\u516c\u5f0f\u662f\u4ec0\u4e48\uff0c\u4e0b\u9762\u662f\u6709\u5173\u8be5\u4e3b\u9898\u7684\u5df2\u89e3\u51b3\u7ec3\u4e60\u3002<\/p>\n<ul>\n<li>\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 <\/li>\n<\/ul>\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<p>\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\u7cfb\u7edf\u4e2d\u4f5c\u7528\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>\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>\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>\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>\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<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Coeficiente-de-friccion-dinamico-y-estatico\"><\/span>\u52a8\u3001\u9759\u6469\u64e6\u7cfb\u6570<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u9759\u6469\u64e6\u7cfb\u6570<\/strong>\u662f\u6307\u5c06\u6cd5\u5411\u529b\u4e0e\u8fd0\u52a8\u5373\u5c06\u5f00\u59cb\u65f6\uff08\u4f46\u8eab\u4f53\u4ecd\u5904\u4e8e\u9759\u6b62\u72b6\u6001\uff09\u65f6\u7684\u6469\u64e6\u529b\u8054\u7cfb\u8d77\u6765\u7684\u6469\u64e6\u7cfb\u6570\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u9759\u6469\u64e6\u7cfb\u6570\u7528\u4e8e\u8ba1\u7b97\u9759\u6469\u64e6\u529b\uff0c\u5373\u542f\u52a8\u8fd0\u52a8\u65f6\u5fc5\u987b\u514b\u670d\u7684\u6469\u64e6\u529b\u3002<\/p>\n<p>\u901a\u5e38\uff0c\u52a8\u6469\u64e6\u7cfb\u6570\u5c0f\u4e8e\u9759\u6469\u64e6\u7cfb\u6570\u3002\u56e0\u6b64\u52a8\u6469\u64e6\u529b\u4e5f\u5c0f\u4e8e\u9759\u6469\u64e6\u529b\u3002 <\/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-a57166a4daa1b3160d4f3237359fbde0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\mu_d<\\mu_e\" title=\"Rendered by QuickLaTeX.com\" height=\"14\" width=\"59\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Valores-del-coeficiente-de-friccion-dinamico\"><\/span>\u52a8\u6469\u64e6\u7cfb\u6570\u503c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u5728\u4e0b\u8868\u4e2d\u60a8\u53ef\u4ee5\u770b\u5230\u52a8\u6469\u64e6\u7cfb\u6570\u548c\u9759\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\u6728<\/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>\u805a\u56db\u6c1f\u4e59\u70ef\u6216\u805a\u56db\u6c1f\u4e59\u70ef<\/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\u7b49\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u89e3\u91ca\u4e86\u7269\u7406\u5b66\u4e2d\u52a8\u6469\u64e6\u7cfb\u6570\uff08\u6216\u52a8\u6469\u64e6\u7cfb\u6570\uff09\u662f\u4ec0\u4e48\u4ee5\u53ca\u5b83\u662f\u5982\u4f55\u8ba1\u7b97\u7684\u3002\u6b64\u5916\uff0c\u60a8\u8fd8\u5c06\u627e\u5230\u8ba1\u7b97\u52a8\u6469\u64e6\u7cfb\u6570\u7684\u5177\u4f53\u793a\u4f8b &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/physigeek.com\/cn\/%e5%8a%a8%e6%91%a9%e6%93%a6%e7%b3%bb%e6%95%b0\/\"> <span class=\"screen-reader-text\">\u52a8\u6469\u64e6\u7cfb\u6570<\/span> \u67e5\u770b\u5168\u6587 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