Consider a situation where a skater pulls her arms inward, causing her rotation rate to speed up.
-Angular momentum
A)is definitely conserved.
B)is definitely not conserved.
C)may or may not be conserved.
D)none of the above

Question

Quizplus · Accepted Answer

Angular momentum is conserved in a closed system with no external torques. When the skater pulls her arms inward, she reduces her moment of inertia, causing her rotation rate to increase to conserve angular momentum.

Consider a Situation Where a Skater Pulls Her Arms Inward