Can kinetic energy of a system be changed without changing its momentum?

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Solution

This relationship assures that the momentum of the object remains constant. This is not necessarely zero, and thus it is possible to change the kinetic energy of an object without changing its momentum as long as the object's mass is not fixed.

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Q. Assertion :Internal forces cannot change linear momentum. Reason: Internal forces can change the kinetic energy of a system.

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