Physics

In a perfectly inelastic collision, the two colliding objects stick together after the collision and move with a common final velocity. Kinetic energy is not conserved in a perfectly inelastic collision, and there is a maximum loss of kinetic energy among the different types of collisions while momentum is conserved.

In an elastic collision, both momentum and kinetic energy are conserved. The objects do not stick together after the collision. Instead, they bounce off each other, and the total kinetic energy before the coll...