试题与答案

如图所示,一个重为100N的小球被夹在竖直的墙壁和A点之间,已知球心O与A点的连

题型:计算题

题目:

如图所示,一个重为100N的小球被夹在竖直的墙壁和A点之间,已知球心OA点的连线与竖直方向成角,且=370,所有接触点和面均不计摩擦。试求小球对墙面的压力F1和对A点压力F2(sin370=0.6;cos370=0.8;tan370=0.75,要求作图)

答案:

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