GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A person sits on a freely spinning lab stool that has no friction in its axle. When this person extends her arms?
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her moment of inertia increases and her angular speed decreases.
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her moment of inertia decreases and her angular speed increases.
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her moment of inertia increases and her angular speed increases.
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her moment of inertia increases and her angular speed remains the same.
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Explanation:
Detailed explanation-1: -Since the person’s moment of inertia increases, her angular velocity will not increase but decrease. The person sits on a freely spinning lab stool that has no friction in its axle. When this person extends her arms, c. her moment of inertia increases and her angular speed decreases.
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