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Given a rocket with an exhaust velocity of 5.0 km/s that needs to achieve 30.0 km/s...

Given a rocket with an exhaust velocity of 5.0 km/s that needs to achieve 30.0 km/s velocity what is the fraction of payload to total weight of rocket at launch? IMPORTANT: Express your answer as a ratio of final mass to launch mass.

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Answer #1

E Soln et total mass=M & fraction mass-m So conservation of momentum MX.5 = mx30 m = 75 망

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