Define momentum of a body. Prove with the help of IIIrd law of motion that the total
momentum of two
bodies is conserved during collision provided no external force acts
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Newton's third law implies that the total momentum of a system of interacting objects that are not acted on by outside forces is conserved. ... Note: In collisionsbetween two isolated objects momentum is always conserved. Kinetic energy is only conserved in elastic collisions.
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