The Deep Space 1 spacecraft’s ion engine produced an average thrust of 37 mN and was fired for a total of 16000 hours. The mass of the spacecraft was 450 kg. (a) Assuming this thrust was the only force acting on it, what was the spacecraft’s rate of acceleration? (b) By how much was its velocity changed over this time period?

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Q: velocity

A:

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: