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 has radius Rpo0w jb;+*yli .ul3 ,csps;we s9q,jk:4 c)jgl It is standing vertically on the floor, and we 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 height9lsu:pcw jsg ,ejqk,l;sc4 3) h, where h

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