1. The problem statement, all variables and given/known data A 4.00 x 10^4 kg space station is in orbit at a speed of =5230 m/s with respect to the earth. Then, with an explosive mechanism much like a cannon, it launches a 300 kg satellite straight ahead with a speed of 6500 m/s. How much kinetic energy was gained during this explosion? 2. Relevant equations 3. The attempt at a solution I actually know how to do the problem, I'm just not sure if the velocity of the satelite BEFORE the launching should be 0 or 5230. I'm leaning towards 0, but I really dont know. Which should it be?