A Figure Skater Rotating at 5

question 12

Multiple Choice

A figure skater rotating at 5.00 rad/s with arms extended has a moment of inertia of 2.25 kg∙m². If the arms are pulled in so the moment of inertia decreases to 1.80 kg∙m², what is the final angular speed?

• A)2.25 rad/s
• B)4.60 rad/s
• C)6.25 rad/s
• D)1.76 rad/s
• E)0.81 rad/s

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Definitions:

Stress

A physical or emotional response to external or internal demands or pressures, affecting an individual's mental and physical well-being.

Dissociative Identity Disorder

A severe psychological condition where two or more distinct identities or personality states are present in and alternately control a person's behavior.

Amnesic

Relating to or characterized by amnesia, a loss of memory, often due to brain injury, disease, or psychological trauma.

Physical Response

The body's reaction to various stimuli, which can be voluntary or involuntary, such as sweating or an increased heart rate.