Question

What is the difference between elastic collision, perfectly elastic collision and superelastic collision?

Answer 1

A perfectly elastic collision is defined as one in which there is no loss of kinetic energy in the collision.

An elastic collision is defined as one in which both conservation of momentum and conservation of kinetic energy are observed. This implies that there is no dissipative force acting during the collision and that all of the kinetic energy of the objects before the collision is still in the form of kinetic energy afterward.

A super-elastic collision is an unusual process in which some mechanism causes the kinetic energy of the system to increase.