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 ha- oh lgz9x*dyhr ;6a(xs radius R. It is standing vertically on the floor, and web w srxa/5.d1o want to exert a horizontal force F at its axle so that it will climb a step against which it rests (Fig. 8–55). The step has hrd.5a wx1o/sbeight h, where h

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