Question

A steel ball bearing is released from a height H and

rebounds after hitting a steel plate to a height H.

What is true about the collision with the steel plate?

Answer 1

CORRECT (SELECTED)

It is elastic since kinetic energy was conserved.

Step-by-step explanation:

Answer 2

ELASTIC collision

kinetic energy is conservate

Step-by-step explanation:

As the ball bounces to the same height, it can be stated that the impact with the floor is ELASTIC.

As the floor does not move the conservation of the moment

po = pf

-mv1 = m v2

- v1 = v2

So the speed with which it descends is equal to the speed with which it rises

Therefore the kinetic energy of the ball before and after the collision is the same