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A ball of mass 150 grams going at a speed of 20 metre per second is hit by a bat if it moves back with the same velocity. find change in the momentum.​

Answer»

-A ball of mass 150 grams going at a SPEED of 20 metre per second is hit by a BAT if it moves BACK with the same velocity. To Find :-Change in momentumSolution :-We know that1 kg = 1000 g150 g = 150/1000150 g =0.15 kgMomentum = mv Δp = mv - muΔp = m(v - u)Δp = 0.15[(-20) - 20]Δp = 0.15[-40]Δp = -6 kg/msHenceMomentum is -6 kg m/s



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