An Ice Skater with Rotational Inertia I₀ Is Spinning with Angular

question 53

Multiple Choice

An ice skater with rotational inertia I₀ is spinning with angular speed ₀.She pulls her arms in, thereby increasing her angular speed to 4 ₀.Her rotational inertia is then:

• A)I₀
• B)I₀ /2
• C)2 I₀
• D)I₀ /4
• E)4 I₀

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