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 P: 22 How would the equation look if instead of knowing the effective exhaust velocity we knew the force the exhaust was exerting on the rocket. The equation is: $$\Delta V = v_e * ln(\dfrac{m_0}{m_1})$$ would $$\Delta V$$ still be proportional to the log of the initial mass over the final mass? http://en.wikipedia.org/wiki/Tsiolko...ocket_equation