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

[问答题]
A wheel of mass M has radius R. Igo;dzav)r hskj .847c2nfu1uywd w3l( 3pk9mt is standing v+xu:dkbue k.tx di,*.ertically on the floor, and we want to exert axk:*b dx.tude , uk.i+ 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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