Two People, Each of 70 Kg Mass, Are Riding in an Elevator

question 81

Multiple Choice

Two people, each of 70 kg mass, are riding in an elevator. One is standing on the floor. The other is hanging on a rope suspended from the ceiling. Compare the acceleration of the first person to the acceleration of the second person. Which statement is correct?

• A) They are equal and opposite in direction.
• B) They are equal and have the same direction.
• C) The acceleration is greater than , but they have the same direction.
• D) The acceleration is greater than , but they have opposite directions.
• E) The acceleration is less than , but they have the same direction.

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Definitions:

Tegmentum

A part of the brainstem that is involved in movement and arousal, containing the reticular formation and various nuclei.

Tectum

Roof of the midbrain.

Superior Colliculi

Paired structures in the midbrain that are involved in visual and auditory reflexes and coordinate head and eye movements.

Cerebrum

The cerebrum is the largest part of the brain, responsible for higher brain functions such as thought, action, reasoning, emotion, and memory.