gc textbook chapter 8 Rotational Motion (id: edef5090c)

[问答题]
A large spool of rope rc(pj3)y (gdakpt vplf1 +vt: yjo8u;,si*o(l olls e3ekh0,pvf+x- z) e l6hb.qgf on the ground with 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 unwinds from the spool? How far does0qv6f+ebex ). ez fp,g- h3khl the spool’s center of mass move?

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