Question

Name a quantities which is conserved in both elastic and inelastic collisions

Answer 1

Explanation:

Momentum is conserved, because the total momentum of both objects before and after the collision is the same. However, kinetic energy is not conserved. Some of the kinetic energy is converted into sound, heat, and deformation of the objects. A high speed car collision is an inelastic collision.

Answer 2

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Elastic Collision

The collisions in which both momentum and kinetic energy of the system are conserved are called elastic collisions.

Reason

Initial and final Kinetic energy of the colliding bodies remain same, this is only obeyed by bodies in elastic collision as in perfectly elastic collision, there is no net conversion of kinetic energy into other forms such as heat, noise, or potential energy.

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Inelastic Collision

The collisions in which the momentum of the system is conserved but the kinetic energy is not conserved are called inelastic collisions.

Reason

Generally collisions in daily-life are inelastic collisions. The kinetic energy lost in an inelastic collision appears in some other form of energy such as heat, sound, etc.

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