[问答题]
A large spool of rope rolls on the g:w upgol78j5 rround with the end of fto1/z3c1speqp9b 1sq 5d( tuthe rope lying on the top edge of the spool. A person grft5u p3zptb (o1/1s q9dce 1qsabs the end of the rope and walks a distance L, holding onto it, Fig. 8–50. The spool rolls behind the person without slipping. What 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
