A Billiard Ball Collides in an Elastic Head-On Collision with a Second

question 61

Multiple Choice

A billiard ball collides in an elastic head-on collision with a second stationary identical ball.After the collision which of the following conditions applies to the first ball?

• A)maintains the same velocity as before
• B)has one half its initial velocity
• C)comes to rest
• D)moves in the opposite direction

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Definitions:

Nystagmus

Involuntary, rapid movement of the eyes, which can be a sign of neurological issues.

Lid Lag

A condition where the upper eyelid moves irregularly or is slow to move, often noticed when the eye moves downward.

Trigeminal Nerve (CN V)

The fifth cranial nerve responsible for sensory information from the face and motor functions for chewing.

Trochlear Nerve (CN IV)

The fourth cranial nerve, responsible for the movement of the eyeball, particularly for downward and inward motions.