Question

a force of 10 N acts on a body of mass 30 kg for 10 seconds. Change in its momentum is?
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Answer 1

Explanation:

Force => 10 N

Mass => 30 kg

Force =>Mass × Acceleration =>10=30×acceleration => acceleration => a = 1/3 m/s2. Final velocity after 10 seconds =>

v=u+at=>0+(1/3)10=> 10/3 m/s.

Change in momentum => 1/2m×v×v => 1/2×30× 10/3× 10/3 => 3000/18 => 500/3 kgm/s. Hope it helps you.

Answer 2

Answer:

Change in momentum is 100 kgm/s

Hope it will help you

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