help me on part a and b

Nickname: No. Date: 3. A bullet of mass 0.010 kg is fired at speed vo = 500 m/s into a wooden block of mass M = 2.00 kg that is initially at rest. The bullet instantaneously comes to rest in the block. The block with the embedded bullet slides along a horizontal surface with a coefficient of kinetic friction Uk = 0.5. initial position final position Vo M a.) How far does the block slide before it stops? [4] b.) If the block was hanging by a string instead of resting on a surface, what is the maximum change in height of the block with the embedded bullet? [4]