A bullet with a mass of 4.0 g and a speed of 650 m/s is fired at a block of wood with a mass of 0.095 kg. The block rests on a frictionless surface, and is thin enough that the bullet passes completely through it. Immediately after the bullet exits the block, the speed of the block is 23 m/s.
(a) What is the speed of the bullet when it exits the block?
(b) Is energy conserved in this collision? (yes or no)
The Attempt at a Solution
v1≈650.00 (Apparently this is wrong.)