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

[问答题]
A wheel of mass M has radius R. It is s gcll2to i;q)7 ne( o29/quaqttanding vertically on the floor, amxf8 m7nsyls glp 1ciy-yj64 b:u/+s+y67f vxnd we want to exert a horizontal force F at its axle so that it will cls vguy6y:x4/+-67i sf1j+pmc7lx snym f8lybimb a step against which it rests (Fig. 8–55). The step has height h, where h

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