本题目来源于试卷: gc physics textbook chapter 6 problems，类别为 IB物理学
[问答题]
Can a centripetal force ever do work on anqdec-g-jueb, v(j*lqf27 pj7 obj6mwfb9;pt2d uu9 k6 czect? Explain.
参考答案:
本题详细解析:
Since “centripetal” means “pointing to the center of curvature”, then a centripetal force will not do work on an object, because if an object is moving in a curved path, by definition the direction towards the center of curvature is always perpendicular to the direction of motion. For a force to do work, the force must have a component in the direction of displacement. So the centripetal force does no work.
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