February 23, 2017

Homework Help: Physics

Posted by Helen on Wednesday, April 4, 2012 at 8:34pm.

A rocket with initial mass of 7.50×103 kg is fired in the vertical direction. Its exhaust gases are ejected at the rate of 4.50×101 kg/s with a relative velocity of 2.200×103 m/s. What is the initial acceleration of the rocket?

What is the acceleration after 20 s have elapsed?

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