Question

In which of the following the momentum and energy of each body not conserved?

(a) Inelastic collision

(b) Oblique collision

(c) Elastic collision

(d) Head on collision

This question was addressed to me by my school principal while I was bunking the class.

My question is from Coefficient of Restitution in chapter Gravitation of Engineering Physics I

Answer 1

Correct answer is (c) Elastic collision

For explanation I would say: Inelastic collision, total momentum and total energy of the entire system are conserved and not individual bodies.