[问答题]
A large spool of rope rolls on th*) y vsav/h,j :- ydepus-:nswe ground witq lh*(i)o5t n+05l52 q sbih-gcpska jh the end of the rope 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. 8–5s2tq-in5lj(p+ o hc bkgah0l*q5s5)i0. 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
