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A ball of mass 0.2 kg moves with a veloc...

A ball of mass 0.2 kg moves with a velocity of `20m//sec` and it stops in `0.1` sec , then the force on the ball is

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According to Newton s second law of motion F =ma where F is the force required to produce an acceleration a in a body of mass m If a = 0 then F = 0 no external force is required to move a body uniformly along a straight line If a force F acts on a body for t seconds the effect of the force is given by Impulse =F xx t = change in linear momentum of the body A cricket ball of mass 150g is moving with a velocity of 12m//s and is hit by a bat so that the ball is turned back with a velocity of 20m//s if duration of contact between the ball and the bat is 0.01sec The impulse of the force is .