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An astronaut accidentally gets separated...

An astronaut accidentally gets separated out his small spaceship accelerating in interstellar space at a constant rate of `100ms^(-2)` . What is the acceleration of the astronaut the instant after he is outside the spaceship? (Assume that there are no nearby stars to exert gravitional force on him)

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(i) The moment the astronaut is out of spaceship, net force acting on the astronaut is zero. This is because there are no nearby stars to exert gravitational force on him and the small spaceship exerts negligible gravitational attraction on him. As net force acting on the astronaut is zero, the acceleration of the astronaut is zero
(ii) Here, M = 20 kg
`m = 20 g = 20 xx 10^(-3) kg, n = 300, v = 250 m//s`
Force required to hold the gun in position
rate of change of momentum of bullets = = nmv
`F = 300 xx 20 xx 10^(-3) xx 250 = 1500 N`
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