A Baseball Is Hit with a Bat And, as a Result

question 105

Multiple Choice

A baseball is hit with a bat and, as a result, its direction is completely reversed and its speed is doubled. If the actual contact with the bat lasts 0.45 s, what is the ratio of the magnitude of the average acceleration of the ball to its original speed?

• A) 6.7 s^-1
• B) 4.4 s^-1
• C) 2.2 s^-1
• D) 0.15 s^-1

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Definitions:

Stress Consistently

implies the continuous application or presence of force on an object or material over a period of time.

Seismic Waves

Waves of energy that travel through the Earth's layers, produced by earthquakes or other earth movements, used to study the interior of the Earth.

Epicenter

The point on the Earth's surface that is directly above the focus of an earthquake, where the seismic waves are felt most strongly.

Hypocenter

The point within the Earth where an earthquake originates, also known as the focus of the earthquake.