Gwen Releases a Rock at Rest from the Top of a 40-M

question 26

Multiple Choice

Gwen releases a rock at rest from the top of a 40-m tower.If g = 9.8 m/s² and air resistance is negligible,what is the speed of the rock as it hits the ground?​

• A)28 m/s
• B)14 m/s
• C)20 m/s
• D)40 m/s
• E)​780 m/s

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Definitions:

Parasympathetic Nerves

Nerves of the autonomic nervous system that conserve energy by slowing the heart rate and increasing intestinal and gland activity.

Spinal Nerves

Nerves that originate from the spinal cord and branch out to various parts of the body to transmit sensory and motor signals.

Cranial Nerves

Cranial Nerves are twelve pairs of nerves that emerge directly from the brain, not the spinal cord, and are responsible for various functions including sensory and motor activities.

Norepinephrine

A neurotransmitter and hormone involved in the body's fight or flight response, affecting heart rate, blood pressure, and blood sugar levels.