What rate is mass being ejected at the instant

Reference no: EM13672631

A rocket with an initial mass of 1000kg adjusts its thrust by varying the rate at which mass is ejected. The ejection speed relative to the rocket is 40 km/s. If the acceleration of the rocket is to have a magnitude of 20 m/s² at an instant when its mass is 80% of the original mass, at what rate is mass being ejected at the instant? Ignore any external forces on the rocket.

Reference no: EM13672631

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