The double pulley shown weighs 30 lb and has a centroidal ra
     The double pulley shown weighs 30 lb and has a centroidal radius of gyration of 6.5 in. Cylinder A and block B are attached to cords that are wrapped on the pulleys as shown. The coefficient of kinetic friction between block B and the surface is 0.25. Knowing that the system is released from rest in the position shown, determine (a) the velocity of cylinder A as it strikes the ground, (b) the total distance that block B moves before coming to rest. 
  
  Solution
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