The cord is wrapped around the inner core of the spool. If a 5-lb block B is suspended f...

The cord is wrapped around the inner core of the spool. If a 5-lb block B is suspended from the cord and released from rest, determine the spool's angular velocity when t = 3 s. Neglect the mass of the cord. The spool has a weight of 180 lb and the radius of gyration about the axle A is k_A = 1.25 ft. Solve the problem in two ways, first by considering the "system" consisting of the block and spool, and then by considering the block and spool separately.