5 block is tied to a string that is wrapped around the rim of a pulley of radius 7. The block is released from rest. Assuming the pulley is a uniform...

1.5 block is tied to a string that is wrapped around the rim of a pulley of radius 7.5 . The block is released from rest. Assuming the pulley is a uniform disk with a mass of 0.31 , find the speed of the block after it has fallen through a height of 0.50 .