gc textbook chapter 8 Rotational Motion (id: 5edd6fe9f)

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本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified

[问答题]
A wheel of mass M hasfo+ essy ;m/s .:,ejya radiavd)y- bu id38,9 ewtius R. It is standing vertically on the floor, and we want to exert ediv9a3yb u i)d8-,tw a horizontal force F at its axle so that it will climb a step against which it rests (Fig. 8–55). The step has height h, where h

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