A Billiard Ball (Ball #1)moving at 5

question 8

Multiple Choice

A billiard ball (Ball #1) moving at 5.00 m/s strikes a stationary ball (Ball #2) of the same mass.After the elastic collision,Ball #1 moves at a speed of 3.50 m/s.Find the speed of Ball #2 after the collision.

• A) 1.25 m/s
• B) 1.50 m/s
• C) 2.16 m/s
• D) 3.57 m/s

---

Definitions:

Fractures

Breaks in rock or mineral without the movement parallel to the surface of the break, often a result of stress exceeding the strength of the material.

Underground Lakes

Bodies of water that exist beneath the Earth's surface, often found in caves or formed by natural aquifers.

Porosity

A measure of how much of a rock is open space, which can hold water, oil, or gas.

Dry

indicates a lack of moisture or water content.