本题目来源于试卷: Rotational Equilibrium，类别为 美国物理杯赛(Physics Bowl)
[单选题]
16.43: A uniform beam connected to a wall at the hinge is in static equilibr fmv*5 de 0heotm8a3d- (wdb(fiu bf+*-oza ap7w m as shown. The cable connected to the beam is massless. What are the directions of the horizontal and vertical components of force acting at bp*a-o a fzw+7 the pivot on the beam?
 
A.
B.
C.
D.
E.
参考答案: C
本题详细解析:
暂无
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