[问答题]
A large spool of rope rolls on thewykyf ,80eqfmr5,)m f t5rkt/ ground rh+4 tgw 231lb 2be*qx.jseetwith 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. 8–50. The spool rolls behind the person without slipping. What length of rope.grheq 2*t1 tlbwebj 2 e+xs34 unwinds from the spool? How far does the spool’s center of mass move?
Post time 2025-2-18 20:00:22
