To Determine If a Rigid Body Is in Equilibrium the Vector

question 47

Multiple Choice

To determine if a rigid body is in equilibrium the vector sum of the gravitational forces acting on the particles of the body can be replaced by a single force acting at:

• A)the center of mass
• B)the geometrical center
• C)the center of gravity
• D)a point on the boundary
• E)none of the above

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Definitions:

Psychological Egoism

The theory that suggests individuals are driven by self-interest and all actions are motivated by personal gain.

Altruistic Behavior

Selfless actions performed for the benefit of others, without expectation of personal gain.

Self-Interest

The concern for one's own advantage and well-being, with behavior guided primarily by personal benefits.

Psychological Egoist

A theory or belief that posits individuals are inherently driven by self-interest, and all actions, even those appearing altruistic, are ultimately motivated by personal gain.