Question

A astronaut accidentally gets separated from his small spaceship accelerating in interstellar space at constant prate of 100 ms^-2. What is the acceleration of the space man instantly when he is outside of his spaceship

Answer 1

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Since there are no nearby stars to exert gravitational force on him and the small spaceship exterts negligible gravitational attraction on him, the net force acting on the astronaut, once he is out of spaceship, is zero. In accordance with the first law of motion the acceleration of the astronaut is zero.