gc textbook chapter 8 Rotational Motion (id: edef5090c)

[问答题]
A large spool of rope rolls on the grou)*c xfpr*i pt 6969yui dapl:und with the e rx2s9z uyu5lwl4/o q7nd 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 tl uy5/ rlwuqzs4o279x he person without slipping. What length of rope unwinds from the spool? How far does the spool’s center of mass move?

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