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Does a mass attached to a spring have its momentum conserved as the spring is compressed...

Does a mass attached to a spring have its momentum conserved as the spring is compressed and then released? Explain.

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Answer #1

No ,momentum does not remain conserved because momentum is given by mass velocity .

And when the spring is compressed we are applying force against the restoring force , but as soon as spring is released restoring force makes the spring to come to its orignal shape .

That means total force during compression of spring is less as compared to total force on spring when it is released . Hence velocity in the two case are different , but mass remains same.

Therefore from the formula for momentum = mass × velocity , momentum does not remain conserved.

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