Question

can any objecthave mechanical energy if its momentum is zero?explain​

Answer 1

Answer:

Yes It Can Have Mechanical energy!!

How??

We Know Momentum = m*v

If it's momentum is zero

m*v = 0

So,  v = 0 because m cannot be equal to zero

So It Doesn't Have any Kinetic Energy but it can have Potential Energy..

Because Potential Energy is Independent of Velocity...

So, Yes It Can Have Mechanical energy!!

Answer 2

Yes an object have mechanical energy if its momentum is zero.

This is so because mechanical energy is the sum of kinetic energy and potential energy. If momentum is zero(i.e. velocity is zero as momentum = mass × velocity and as mass cannot be equals to 0 therefore velocity is 0 to have 0 momentum),kinetic energy is also zero (as kinetic energy =1/2mv^2). But potential enegy cannot be zero if momentum is zero ( as potential energy = mgh and thus does not depend on velocity).

Hence an object has mechanical energy because of potential energy if momentum is zero.

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