Question

If the total mechanical energy of a particle is 0 then, can it be necessarily nonzero?
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Answer 1

hey mate your answer is here.........

Yes, necessarily the momentum can be non-zero.

But the question is that how it can be non-zero, as mathematically when we calculate and the kinetic energy is 0 then the momentum also becomes 0.

The don't forget that, momentum is the tendency of changing state by virtue of rest and motion, it is not that tendency of changing the state from motion to rest.

Moreover, it should also have to be kept in mind that while a body gradually loses its potential energy then at the same time it gains kinetic energy at the same rate that of the losing potential energy and when a body loses its kinetic energy then at the same time it gains potential energy by the same rate of losing the kinetic energy. So, either the body gains the tendency to stay in rest or in motion and in this case only the momentum can be non-zero.

hope it will help you please mark the answer as brainlist and don't forget to follow me for such type of answers.........