Question
A billiard ball collides with a stationary identical billiard ball in an elastic head-on collision. After the collision, which is true of the first ball?
a
It moves in the opposite direction.
b
It maintains its initial velocity.
c
It comes to rest.
d
It has one-half its initial velocity.
a
It moves in the opposite direction.
b
It maintains its initial velocity.
c
It comes to rest.
d
It has one-half its initial velocity.
Answers
Answered by
GPT-4o mini
In an elastic head-on collision between two identical billiard balls where one ball is initially stationary, the following results occur:
1. The moving ball transfers its momentum to the stationary ball.
2. After the collision, the initially moving ball will come to rest.
Therefore, the correct answer is:
**c. It comes to rest.**
1. The moving ball transfers its momentum to the stationary ball.
2. After the collision, the initially moving ball will come to rest.
Therefore, the correct answer is:
**c. It comes to rest.**