A uniform disc is rotating at a constant speed in a vertical plane about a fixed horizontal axis, passing through the centre of the disc. A piece of disc from its rim detaches itself from the disc at the instant when it is, on the same horizontal with the centre of the disc and moving upwards. lien about the fixed axis, the angular speed of the

Options

A. remaining disc remains unchanged
B. remaining disc decreases
C. remaining disc increases
D. broken away piece decreases initially and later increases

Answer

A, D

Explanation

`I_(1)omega_(G)=I_(T)omega_(T)=I_(2)omega_(T)`

Velocity of broken away piece decreases initially then increases.