Question

If a ball hits a another ball with the same mass at rest in a perfectly elastic collision, what would most likely happen?

The two balls would swap velocities.
The first ball would keep moving but at a slower speed. The second ball would move faster.
The first ball would bounce backwards, and the second ball would move forwards.
PLEASE HELP HAVE TO SUBMIT IN 20minutes!!

Answer 1

The two balls swap velocities in perfect elastic collision.

Step-by-step explanation:

• The collision where the kinetic energy in a system remains constant after the collision is called elastic collision. The momentum and kinetic energy remains the same in this collision.
• The kind of collision in which little kinetic energy is spent due to collision is inelastic collision.The momentum is conserved.
• When two balls of equal mass experience perfectly elastic collision, the balls swap their velocities without any change in their kinetic energy and momentum.
• The perfect collision condition is difficult to obtain in practical situations.