a-rotating-disc-is-moving-at-6-rads-a-point-mass-with-negligible-initial-velocit

Question

A rotating disc is moving at 6 rad/s. A point mass with negligible initial velocity is added to the edge. What happens to the system's kinetic energy?

Accepted Answer

The kinetic energy decreases.

Answer

The kinetic energy increases.

Answer

The kinetic energy becomes zero.

Answer

The kinetic energy remains the same.