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A body of mass 2 kg is moving with a vel...

A body of mass 2 kg is moving with a velocity 8 m/s on a smooth surface. If it is to be brought to rest in 4 seconds, then the magnitude of force (in newton) to be applied in opposite direction of motion is

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`|F|=|(m(u-v))/t|=|2xx(8-0)/4|=N`
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