如图所示,球A重G1=60N,斜面体B重G2=100N,斜面倾角为30°,一切摩擦均不...
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发布时间：2024-05-14 02:49
共1个回答
热心网友
时间：2024-08-02 05:20
根据平衡条件，有：
F1=G1tan30°=60×33=203N
F2=G1cos30°＝6032＝403N
再对AB整体受力分析，受重力、地面的支持力N，已知的推力F，墙壁向右的支持力F1，根据平衡条件，有：
F=F1=203N
N=G1+G2=60+100=160N
根据牛顿第三定律，墙壁受到的压力为203N，地面受到的压力为160N；
答：（1）水平力F为203N时，才能使A、B均处于静止状态；
（2）此时墙壁受到的压力为20已赞过已踩过你对这个回答的评价是？评论收起 // 高质or满意or特型or推荐答案打点时间 window.iPerformance && window.iPerformance.mark('c_best', +new Date); 推荐律师服务：若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询 ._1uevpeq{zoom:1;background-color:#fff;border:0;margin-bottom:10px;padding:30px 0 20px 42px;position:relative}._1uevpeq.ec-1841{padding:20px 0}._1uevpeq.ec-2246{padding:20px 0 10px}.ec-1841 .y7we4hu{font-size:16px;margin-bottom:-5px}.y7we4hu{color:#7a8f9a;height:25px;line-height:25px;overflow:hidden;position:relative}.y7we4hu h2{margin:0;padding:0}.y7we4hu:after{clear:both;content:" ";display:block;height:0;visibility:hidden}a.tycfu7u{color:#666;float:right;font-size:12px;margin-left:8px;text-decoration:none}.hhhv6ex{color:#666;font-size:13px;line-height:normal;line-height:20px;margin-top:10px}.vnsdjzp{margin-top:15px;position:relative}.vnsdjzp h3{font-weight:400;padding:0}.vnsdjzp a{text-decoration:none}.vnsdjzp em{color:#d81419;font-style:normal}.ec-2246 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