When the Sum of the External Forces and the Sum

question 27

Multiple Choice

When the sum of the external forces and the sum of the external torques on a body are both zero, we can conclude that

• A) the body is moving at constant velocity but is not rotating.
• B) the body is rotating at constant angular velocity but has no linear velocity.
• C) the body has neither linear nor angular velocity.
• D) the body may have constant linear or angular velocity, but not both simultaneously.
• E) the body may have constant linear or constant angular velocity, or both simultaneously.

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Definitions:

Opportunity Cost

The loss of potential gain from other alternatives when one alternative is chosen.

Rival Nation

A country that competes with another, often in economic, military, or technological aspects.

Mercantilism

An economic theory and practice that promotes government regulation of the nation's economy to increase state power at the expense of rival national powers.

Trade Surplus

A situation where a country's exports exceed its imports over a given period.