Rocket Propulsion Gas Injection

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ada0289
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Please help, book gives no examples relatively close to this.

A rocket is fired in deep space, where gravity is negligible.


If the rocket has an initial mass of 6000 kg and ejects gas at a relative velocity of magnitude 2000 m/s , how much gas must it eject in the first second to have an initial acceleration of 25.0 m/s^2?
 
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Welcome to PF!

Hi ada0289! Welcome to PF! :smile:
ada0289 said:
If the rocket has an initial mass of 6000 kg and ejects gas at a relative velocity of magnitude 2000 m/s , how much gas must it eject in the first second to have an initial acceleration of 25.0 m/s^2?

Hint: use conservation of momentum :wink:

What do you get? :smile: