When a spinning ice skater pulls her arms inward, her angular velocity
A).increases
B)decreases
C)remains the same

Question

Quizplus · Accepted Answer

This is due to the law of conservation of angular momentum, which states that the product of the moment of inertia and angular velocity must remain constant unless acted upon by an external torque. When the skater pulls her arms inward, her moment of inertia decreases, which means her angular velocity must increase to maintain the same amount of angular momentum.

When a Spinning Ice Skater Pulls Her Arms Inward, Her