A 7.3 x103 kg space vehicle and its empty 6.8 x 102 kg, Ask an Expert

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Q. A 7.3 x10^3 kg space vehicle and its empty 6.8 x 10^2 kg booster unit are moving together through space at 370 m s. An explosion lasting 2.2s is used to separate the two parts. If the speed of space vehicle after the separation is increased to 430 m s, what impulse acted on the booster unit?

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