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\n$G_{x}=mgsin\\alpha=F_{f}=\\mu{F_{N}}$
\n$G_{y}=mgcos\\alpha=F_{N}$\uff0c\u4e0d\u96be\u5f97\u51fa\uff1a$\\mu=tan\\alpha$\uff08\u5982\u679c\u6469\u64e6\u7cfb\u6570\u6bd4\u8fd9\u5927\u6216\u5c0f\u5462\uff09<\/p>\n
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\nngg_shortcode_1_placeholder
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\nngg_shortcode_2_placeholder
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\nngg_shortcode_3_placeholder
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\n$F_{f}=\\mu{F_{N}}$
\n$F_{f}=\\sqrt{(mgsin\\alpha)^2+F^2}$
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\n$F_{N}=Gcos\\alpha=9N$\uff0c$f_{max}=\\mu{F_{N}}=3N$\uff0c$Gsin\\alpha=3\\sqrt{3}N$…
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