[问答题]
A large spool of rope rolls on the ground with the end of theno1voa8bt.2cf ) 2dp z rope lying m fve-+q7awo95: buci 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 unwinds from the spool? How fa-wm 5 7e9uv:qbo iafc+r does the spool’s center of mass move?
