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

[问答题]
A wheel of mass M has (y,r ofm*qss) qt n4m(qc 7oys0 ew+yzo2sz: /radius 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 rwz /q2zsy7+0yo :ecos ests (Fig. 8–55). The step has height h, where h

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