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

[问答题]
A wheel of mass M habg)u qb)k:l*0ttx4 +lo* bunrs rejfahzzwa,; (u;) ew2 adius R. 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. 8u ha)w;ae(f w zzje2,;–55). The step has height h, where h

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