[问答题]
A large spool of rope rolls on the o66mk t5vpbdc 4j1v7 tt48okg ground with the end of the rd+7scmvc3 s5mid71jkj*+ h izope lying on the top edge of the spool. A person grabs the end of the rope and walks a distance L, holding onto it, Fig. 8–50. The spool rolls behind the person without slipping. Whatc+m3d 1 ss vj+7 5dcimhj*z7ki length of rope unwinds from the spool? How far does the spool’s center of mass move?
Post time 2025-2-18 20:00:22
