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Asked by Kushiriki

A rocket expels a gas at rate of 0.5kg/s if the force produced by the rocket is 2000N what is the velocity with which gas expelled
4 years ago

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Answered by Anonymous
F = d/dt momentum = d/dt (m v) = v dm/dt + m dv/dt
v is constant
so
F = v dm/dt =
2000 = v (0.5)
v = 4000 m/s
4 years ago
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