[问答题]
A large spool of rope row4(v gyk pmp1tvz327h ll +efpn9f,opm8 h gf5 )99mqddopb08efs on the ground with the end of the rope lying on the top edge of the0m fo doqe8)+f5dpgf9ehfp9b,89 nmp 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 far does the spool’s center of mass move?
Post time 2025-2-18 20:00:22
