本题目来源于试卷: Physics Unit6: Work and Energy，类别为 通用国际物理
[单选题]
Does the centripetal force actag/ .p5mi)y oving on an:r toh 0ve58 ou6eh(pn object do work on the object?
A. Yes, since a force acts and the object moves, and work is force times distance.
B. Yes, since it takes energy to turn an object.
C. No, because the object has constant speed.
D. No, because the force and the displacement of the object are perpendicular.
参考答案: D
本题详细解析:
暂无
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