According to the conservation of angular momentum, if an ice-skater who is spinning with her arms out wide slowly pulls them close to her body, she will
A) spin faster.
B) spin slower.
C) maintain a constant rate of spin.
D) fall down.
E) stop spinning entirely.

Question

Quizplus · Accepted Answer

When the ice-skater pulls her arms in, she reduces her moment of inertia. According to the conservation of angular momentum, if no external torque acts on her, her angular velocity must increase to keep the angular momentum constant, causing her to spin faster.

According to the Conservation of Angular Momentum, If an Ice-Skater