Question

can any object heve mechanical energy even if the momentum is zero explain​

Answer 1

Answer:

Yes, it can.

Explanation:

Mechanical energy = Kinetic energy + Potential energy

If a object has momentum = 0 thus v = 0 momentum = (mass x velocity)

Also kinetic energy = $\frac{1}{2}mv^{2}$

Thus kinetic energy = 0 if momentum =0

But potential energy can be independent of velocity in many cases.

For example, a rock kept on a table 5m above the ground has potential energy given as mgh.

where m = mass of rock

g= acceleration due to gravity

h= height from the surface of Earth.

Thus a body having momentum =0 can still have non-zero mechanical energy.

Thanks!

Answer 2

Answer:

yes it can.

Explanation:

For example a body at rest placed at higher elevation can have potential energy (type of mechanical energy) but it is having zero momentum as it has zero velocity.