Physics Unit8: Rotational Motion (id: eb4327264)

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本题目来源于试卷: Physics Unit8: Rotational Motion，类别为 Generic Physics

[单选题]
Two forces are applied to a d+i04*0 l fhrq)lms(wl o fwbf7oorknob, perpendicule3 o8enebyv 8,ar to the door. The first force is twice as large as the second force. The ratio of the t8b3voee,en y8orque of the first to the torque of the second is

A. 1/4.
B. 1/2.
C. 2.
D. 4.


参考答案:  C


本题详细解析: 暂无