1. The problem statement, all variables and given/known data A projectile mass (mass=0.20 kg) is fired at and embeds itself in a target (mass=2.50 kg). The taget (with the projectile in it) flies off after being struck. What percentage of the projectile's incident kinetic energy does the target (with the projectile in it) carry off after being struck? 2. Relevant equations 3. The attempt at a solution I have no idea what this question is even asking me to do, how do you do a question like this when they only give you masses?