1. The problem statement, all variables and given/known data A 7.00g bullet, when fired from a gun into a 1:00-kg block of wood held in a vise, penetrates the block to a depth of 8.00 cm. This block of wood is placed on a frictionless horizontal surface, and a second 7.00g bullet is fired from the gun into the block. To what depth will the bullet penetrate the block in this case? 2. Relevant equations 3. The attempt at a solution It looks deceptively simple, but I thought the answer was the same at 8 cm. I think it is wrong? Am I?