An object with an initial momentum of 20 kgm/s is acted on by an average force of 2.5 N and comes to rest. For how long does the force act on the object? (4 marks)
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Explanation:
force = final mometum - initial momentum
2.5N = 0 - 20
2.5N = -20
N = -20/2.5
N = -8
I am not sure with my answer but may be it is right. THANK YOU
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