Consider the following two statements:
A. Linear momentum of a system of partcles is zero.
B. Kinetic energ of a system of particles is zero.

Options

A. A implies B and B implies A
B. A does not imply B and B does not imply A.
C. A implies B but B does not imply A
D. B implies A but A does not imply B

Answer

D

Explanation

Kinetic energy of the sytem is zero, it definitely means momentum is zero. But momentum of the system is zero, it does not kinetic energy is zero.