If the total mechanicla energy of a particle is zero is its linear momentum necessarily zero? Is it necessarily nonzero?

Total energy of SHM particle…….

What is linear momentum ? Write its SI unit

The total energy of a particle, executing simple harmonic motion is.

If the displacement of a body is zero is the distance covered by it necessarily zero ? Explain with suitable illustration.

If the total external forces on the system of particle is zero, then find the velocity and acceleration of its centre of mass.

If the external force acting on a system of particle is zero then …………..

If distance travelled by particle is zero then its displacement is …... .

What is the total energy at infinite distance ? (zero or positive)

What is the total momentum of the system of particle?