A Bullet Is Fired Through a Board, 14

question 15

Multiple Choice

A bullet is fired through a board, 14.0 cm thick, with its line of motion perpendicular to the face of the board. If it enters with a speed of 450 m/s and emerges with a speed of 220 m/s, what is the bullet's acceleration as it passes through the board?

• A) −500 km/s²
• B) −550 km/s²
• C) −360 km/s²
• D) −520 km/s²
• E) −275 km/s²

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Definitions:

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Locations in the United States identified by the Environmental Protection Agency as contaminated by hazardous materials and eligible for federal cleanup funds.

Clean Up

The process of removing pollutants or contaminants from an environment, often referring to industrial or hazardous waste remediation efforts.

Clean Air Act

A comprehensive federal law in the United States that regulates air emissions from stationary and mobile sources to protect public health and the environment.

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The presence of substances in the atmosphere that are harmful to the health of humans and other living beings or cause damage to the climate or materials.