Question

IF an object has o momentum,does it have kinetic energy? Explain your
answer​

Answer 1

Answer:

This is because mass of the object can never be 0. Hence , when the object has zero momentum , its kinetic energy is also zero .

Momentum of an object , P = mv

If P = 0

⇒v=0

This is because mass of the can never be 0. Now , kinetic energy of the object , K=

2

1 ×m×v ²

Since , V = 0

⇒K=0

Hence, when the object has zero momentum, its kinetic energy is also zero.

Answer 2

Answer:

Kinetic energy of a body of mass m and speed v

=K =1 m²v²

_ mv²= ____

2 2m

=P²

__, where p=mv is the momentum of the

2m body.

It follows that if p=O, the kinetic energy of the body is zero.