Physics 211 Spring 2009 Syracuse University Homework Problem Set 12 p.1
Physics 211 Problem Set 12 Due Fri, 04/17/09
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1. A spool of wire of mass M and radius R is unwound under a constant force F (see
below). The spool is a uniform solid cylinder that does not slip.
(a) Draw extended free-body diagram for the spool (i.e. draw all of the forces on the
spool)
(b) Show that the acceleration of the center of mass is 4F/(3M).
