An Apple Falls from a Tree and Hits the Ground

question 42

Multiple Choice

An apple falls from a tree and hits the ground 5 m below. It hits the ground with a speed of about

• A)5 m/s.
• B)10 m/s.
• C)15 m/s.
• D)20 m/s.
• E)not enough information given to estimate

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Definitions:

Parasympathetic Nervous System

Part of the autonomic nervous system responsible for conserving energy and slowing the heart rate, facilitating a state of calm and relaxation.

Somatic Nervous System

The part of the peripheral nervous system that controls voluntary movements of the body and transmits sensory information.

Racing Heartbeat

A rapid increase in heart rate, often due to excitement, stress, or physical exertion.

Spinal Reflex

A rapid, automatic response initiated in the spinal cord without conscious brain involvement, typically in response to a stimulus.