1. The problem statement, all variables and given/known data A rocket with a mass of 7.2 x 10^4 kg starts from rest in outer space and fires its thrusters until it is moving with a velocity of 100 m/s. What was the average force on the rocket due to the thrusters? 2. Relevant equations 1/2 mv^2 = Fxd 3. The attempt at a solution I attempted this problem using conservation. However, I keep getting an answer with "d" yet I am unable to solve for d. Can anyone point me in the right direction?