Elastic Collision is that collision during which

A. Momentum is conserved

An elastic collision is a special type of collision where two key properties are conserved:

A. Momentum is conserved B. Energy is conserved (specifically, kinetic energy)

This means the total momentum and total kinetic energy of the objects before the collision are equal to the total momentum and total kinetic energy of the objects after the collision.

Here’s a breakdown of the other options:

• C. Mass is conserved: This is true for all collisions (elastic or inelastic) as well as most other physical processes. Mass cannot be created or destroyed according to the law of conservation of mass.
• D. Angular Momentum is conserved: This can be true for elastic collisions under specific conditions, but it’s not a general requirement for them.

So, for an elastic collision, both momentum and kinetic energy are conserved.

If we are seeking the option that best describes what happens during an elastic collision, the answer would be:

A. Momentum is conserved