Consider a situation where a skater pulls her arms inward, causing her rotation rate to speed up.
-Kinetic energy
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

When the skater pulls her arms inward, her moment of inertia decreases, causing her rotational speed to increase. This results in an increase in rotational kinetic energy, indicating that kinetic energy is not conserved.

Consider a Situation Where a Skater Pulls Her Arms Inward