Question

State whether the given statement is True or False :

Momentum is conserved in all collisions but kinetic energy is conserved in elastic collisions only.

• A. True
• B. False

Answer 1

The correct option is A True

Since no external forces are acting on the colliding bodies during collision, thus total linear momentum is always conserved in all type of collisions but total kinetic energy in not conserved in all collisions.

Total kinetic energy is conserved in perfectly elastic collision only but some kinetic energy is lost in inelastic collisions.

Thus the above statement is true.