Question

Which of the following is an elastic collision?

A.
A wad of gum sticking to a window

B.
Two cars colliding and sticking together

C.
A vase falling to the floor and shattering

D.
A tennis racquet hitting a ball

Answer 1

Answer: D

Explanation:

An elastic collision is a collision in which there is no net loss in kinetic energy in the system as a result of the collision. Both momentum and kinetic energy are conserved quantities in elastic collisions. Suppose two similar trolleys are traveling toward each other with equal speed.

Answer 2

What is an elastic collision? An elastic collision is a collision in which there is no net loss in kinetic energy in the system as a result of the collision. Both momentum and kinetic energy are conserved quantities in elastic collisions. Suppose two similar trolleys are traveling toward each other with equal speed.


So the answer is B!!

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