need answer asap with work

2. A 5.00 g bullet is fired into and passes through a 1.00 kg block as shown in Figure. The block, initially at rest on a frictionless horizontal surface, is connected to a spring of spring constant 900 N/m . If the block compresses the spring by 5.00 cm after the impact and the speed at which the bullet emerges from the block equal to 100 m/s find a) the speed of the bullet before the impact b) the speed ofthe block right after the impact 1 - 500 m 5g 5 cm ally brought to rest by