Question

Q.1. A small girl is standing on a rotating table at the centre with her arms closed
together. What will happen to the angular velocity if she extends her arms
horizontally?​

Answer 1

Explanation:

due to the laws of inertia, the angular velocity will decrease as the moment of inertia is inversely propotional to the angular velocity.

therofore, when the arms are extended horizontally, moment of inertia increases and angular velocity decreases.