Question

In a completely elastic collision: Group of answer choices

1 - momentum is conserved, but not kinetic energy.
2 - kinetic energy is conserved, but not momentum.
3 - neither momentum nor kinetic energy are conserved.
4 - momentum and kinetic energy are both conserved.
5 - 4 - none of these

Answer 1

In a completely elastic collision, both momentum and kinetic energy are conserved.

Step-by-step explanation:

In a completely elastic collision, both momentum and kinetic energy are conserved.

Conservation of momentum means that the total momentum of the objects before the collision is equal to the total momentum after the collision.

Conservation of kinetic energy means that the total kinetic energy of the objects before the collision is equal to the total kinetic energy after the collision.