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a force of 100 Newton acts on a mass initially at rest for 4seconds to give velocity of 20m/s find the mass of the body |
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Answer» your ANSWER is 20kgExplanation:here F=100N ,t=4s v=20m/sthrrefore ACCELERATION a= v/t a=20/4 a=5m/s^2Therefore F=ma100=m*5m=20 KG |
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