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Homework Statement
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?
Homework Equations
F = ma
F = RVREL
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!