A Spinning Ice Skater on Extremely Smooth Ice Is Able

question 147

Multiple Choice

A spinning ice skater on extremely smooth ice is able to control the rate at which she rotates by pulling in her arms. Which of the following statements are true about the skater during this
Process? (There could be more than one correct choice.)

• A) Her kinetic energy remains constant.
• B) She is subject to a constant non-zero torque.
• C) Her moment of inertia remains constant.
• D) Her angular momentum remains constant.

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Definitions:

Glistening Appearance

A physical trait where a surface appears shiny or sparkles, often due to being wet or polished.

Effector

A part of the body, such as a muscle or organ, that produces a response when stimulated by a nerve impulse.

Interneuron

Neuron located within the central nervous system that conveys messages between parts of the central nervous system.