Define elastic collision and inelastic collision.

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(N/A) $1$. Elastic Collision: An elastic collision is a collision in which both the total linear momentum and the total kinetic energy of the system are conserved. There is no loss of kinetic energy during the collision. Example: Collision between subatomic particles or ideal gas molecules.
$2$. Inelastic Collision: An inelastic collision is a collision in which the total linear momentum of the system is conserved,but the total kinetic energy is not conserved. Some kinetic energy is transformed into other forms of energy such as heat,sound,or deformation. Example: $A$ ball hitting the ground and not bouncing back to its original height.

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