Jacques and George Meet in the Middle of a Lake

question 30

Multiple Choice

Jacques and George meet in the middle of a lake while paddling in their canoes. They come to a complete stop and talk for a while. When they are ready to leave, Jacques pushes George's canoe with a force to separate the two canoes. What is correct to say about the final momentum and kinetic energy of the system?

• A) The final momentum is in the direction of but the final kinetic energy is zero J.
• B) The final momentum is in the direction opposite of but the final kinetic energy is zero J.
• C) The final momentum is in the direction of and the final kinetic energy is positive.
• D) The final momentum is zero kg∙m/s and the final kinetic energy is zero J.
• E) The final momentum is zero kg∙m/s but the final kinetic energy is positive.

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Definitions:

Bumper Crop

An unusually large agricultural harvest, often leading to excess supply and possibly lower prices.

Price Elastic

A measure of how much the quantity demanded of a good or service changes in response to a change in its price.

Income Inelastic

A situation where the demand for a good does not significantly change with a change in consumer's income.

Real Prices

Prices that have been adjusted for inflation, reflecting the true purchasing power of money over time.