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:

Marginal Cost

The financial outlay involved in producing an additional unit of a product or service.

Resources

The total means available for economic and political development, such as minerals, labor, and capital.

Pareto Optimal

A situation in economics where resources are allocated in the most efficient manner, making it impossible to reallocate without making at least one individual worse off.

Trades

The action of buying and selling goods and services, which can occur domestically within a country or internationally between countries.