Question

A rocket of mass 120 kg is moving vertically up at 600m/s such that gas is escaping at the rate of 1kg/s.Find the acceleration of the rocket.

Answer 1

A rocket of mass 120 kg is fired in a gravity free space. It eject gases with velocity 600 m/s at the rate of 1 kg/s. Initial acceleration of rocket is 5 m/s^2. 80% of mass of rocket is fuel. What will be acceleration of rocket 100 seconds after firing?

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