A man turns with an angular velocity on a rotating table,holding two equal masses at arms' length.If he drops the two masses without moving his arms,his angular velocity
A)decreases.
B)remains the same.
C)increases.
D)increases as the angular velocity of the masses decreases.
E)decreases as the angular velocity of the masses increases.

Question

Quizplus · Accepted Answer

The man's angular velocity remains the same because dropping the masses without moving his arms does not change the moment of inertia of the system, and thus, by the conservation of angular momentum, his angular velocity remains unchanged.

A Man Turns with an Angular Velocity on a Rotating