If the 230-lb block is released from rest when the spring is unstretched, determine the velocity of the block after it has descended 5ft . The drum has a weight of 70lb and a radius of gyration of kO= 0.5ft about its center of mass O.

 

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k = 75 lb/ft 0.375 ft 0.75 ft k = 75 lb/ft 0.375 ft 0.75 ft