when no esternal force acts on a body then change in momentum is????
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If there is no net external force, there is no change in momentum. If an object changes velocity, its momentum will change. An elephant with a mass of 5,000 kg changes his velocity from 2 m/s to 4 m/s in the same direction
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If there is no net external force, there is no change in momentum. If an object changes velocity, its momentum will change.
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