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    Momentum: Rocket moves in outer space; final velocity if gas is 25% of initial mass

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    A rocket moves in outer space with no external forces acting on it. It starts from rest and then continuously exhausts gas at a speed of 6.0 km/s, relative to the engines. Find the final velocity of the rocket if the gas accounts for 25% of its initial mass.

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    Solution Summary

    With good explanations and calculations, the problem is solved.