A Car Rounds a 20-M Radius Curve at a Speed

question 8

Multiple Choice

A car rounds a 20-m radius curve at a speed of 10 m/s.The magnitude of its acceleration is:

• A)0 m/s²
• B)0.20 m/s²
• C)5.0 m/s²
• D)40 m/s²
• E)400 m/s²

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Definitions:

Automatic Responses

Involuntary reactions to stimuli, not requiring conscious thought, such as reflex actions.

Subconscious Responses

Reactions that occur without conscious thought, often reflexes or actions triggered by stimuli below the level of conscious awareness.

Voluntary

Referring to actions or movements under conscious control by the individual.

Anterior Roots

The front part of a spinal nerve that carries motor output from the spinal cord to the body's muscles.