A Giant Wheel, Having a Diameter of 40 M, Is

question 61

Multiple Choice

A giant wheel, having a diameter of 40 m, is fitted with a cage and platform on which a man of mass m stands. The wheel is rotated in a vertical plane at such a speed that the force exerted by the man on the platform is equal to his weight when the cage is at X, as shown. The net force on the man at point X is:

• A) zero
• B) mg, down
• C) mg, up
• D) 2 mg, down
• E) 2 mg, up

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Definitions:

Prefrontal Cortex

The front part of the frontal lobe of the brain, involved in complex behaviors such as planning, decision making, and moderating social behavior.

Hypothalamus Axons

Axons originating from the hypothalamus, involved in functions like temperature regulation, hunger, and emotional responses.

Postsynaptic Membrane

The membrane of the neuron that receives and responds to neurotransmitters from another neuron at a synapse.

Peptides

Chains of amino acids that are shorter than proteins, which play key roles in biological functions and act as neurotransmitters, hormones, and catalysts.