Which one of the following statements is true ?

Easy

A

momentum is conserved in elastic collisions but not in inelastic collisions
B

during an elastic collision , total kinetic energy is conserved but momentum is not conserved .
C

during an elastic collision, total kinetic energy is not conserved but momentum is conserved .
D

kinetic energy and momentum both are conserved in all types of collisions

Solution

During an elastic collision, the momentum is conserved while total K.E. is not conserved as dduring the contact period , a part of kinetic energy is converted in elastic potential energy.

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