1. The problem statement, all variables and given/known data A rocket which has an exhaust speed of 8.0 km/s is to have a vertical acceleration of 8.0 m/s2. If the initial mass of the rocket is 6.0x106 kg, at what minimum rate must the rocket consume fuel? 2. Relevant equations F = ma F = RVREL 3. The attempt at a solution F = (6.0x106 kg)(8.0 m/s2) = 4.8x107 N R = (4.8x107 N) / (8000 m/s) = 6000 kg/s. The back of the book tells me this answer is wrong. I would appreciate any insight into the error(s) I am making. Thank you!