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

[问答题]
A wheel of mass M has radkb vfrr; -ir 3jca*(:bius R. It is standi5w ajzljsn- o5yr -9g)ng vertically on the floor, and we want to exert a horizontal force F at its axle so that it will climb a step against-ona-ryj5j5 gs)l9 z w which it rests (Fig. 8–55). The step has height h, where h

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