state law of conservation of momentum and write its mathematical expression
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law of conservation of momentum states that when two bodies collides the total momentum is conserved i.e the total momentum after collision and total momentum before collision is same. ... thus, the momentum is conserved.
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Newton's third law states that for a force applied by an object A on object B, object B exerts back an equal force in magnitude, but opposite in direction. This idea was used by Newton to derive the law of conservation of momentum. ... B=m_{2}(v_{2}-u_{2}) (change in momentum of par
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