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:

Data Members

Variables that hold data specific to an instance of a class, also known as fields or properties.

Public

A keyword in many programming languages specifying that a variable, method, or class is accessible from any other code in the same environment.

Private

In object-oriented programming, an access modifier that restricts visibility of a class member to within the class itself.

Static

A keyword in programming that denotes a member of a class that belongs to the class itself rather than to any specific instance of the class.