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

[问答题]
A wheel of mass M has ram n wco-c7j.p+dius R. It is standing verticallweyjj7j ezjw4vzek+ :0*ta; 8y on the floor, and we want to exert a horizontal force F at its axle so that it will climb a stje:;ejye4twj8 a*z +jzvk 07wep against which it rests (Fig. 8–55). The step has height h, where h

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