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A rocket ejects a steady jet whose veloc...

A rocket ejects a steady jet whose velocity is equal to u relative to the rocket. The gas discharge rate equals `mu kg//s`. Demonstrate that the rocket motion equation in this case takes the form
`mw=F-muu`,
where m is the mass of the rocket at a given moment, w is its acceleration, and F is the external force.

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The correct Answer is:
`"["(F+ru)/m"]"`
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