A 30-Kg Particle Has a Position Vector Given by

question 9

Multiple Choice

A 3.0-kg particle has a position vector given by
Where
Is in meters and t is in seconds.What is the angular momentum of the particle,in kg⋅m²/s,about the origin at t = 2 s?

• A)72
• B)−72
• C)24
• D)−24
• E)22

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Definitions:

Sympathetic System

Part of the autonomic nervous system that activates the body's rapid involuntary response to dangerous or stressful situations (fight or flight response).

Parasympathetic Branch

Part of the autonomic nervous system responsible for stimulating "rest-and-digest" or "feed and breed" activities that occur when the body is at rest.

Type A Characteristics

Personality traits including competitiveness, impatience, and a sense of urgency, often linked to stress and heart disease.

Hyperarousal

A condition of increased psychological and physiological tension marked by such effects as reduced pain tolerance, anxiety, and exaggerated startle reflex.