本题目来源于试卷: Physics Unit8: Rotational Motion，类别为 通用国际物理
[单选题]
Two equal forces are applied to a door at the doq,kf ys *lx; ,)nchla(orknob. The first forcmzyr,d q1ua1 5c i,hw1e is applied perpendicular to the door; the second force is applied at 30e to the plane of the door. qd5,1 1,zi h uac1yrmw Which force exerts the greater torque?
A. the first applied perpendicular to the door
B. the second applied at an angle
C. both exert equal non-zero torques
D. both exert zero torques
参考答案: A
本题详细解析:
暂无
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