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Angular Impulse

A cracker roc...

Question

A cracker rocket is ejecting gases at a rate of 0.05kg/s with a velocity 400 m/s. What will be the accelerating force on the rocket?

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Solution

F = change in momentum
F = M × v(final) - v(initial)/time and hence it has to be
F = 0.05 × 400 = 20N

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