1. The problem statement, all variables and given/known data A jet engine is being tested in the laboratory and it is found to consume 20 kg of air per second while using 0.2 kg of fuel per second. Given that the exit velocity of the gases is 500 m s-1, calculate the thrust generated by the engine. 2. Relevant equations F = M(V-U) where F is thrust, M is mass and V and U are final and initial velocities. 3. The attempt at a solution not sure what to be doing here as i don't know what's going in where. what goes in for U the initial velocity?