A uniform disc is rotating at a constantt speed in a vertical plane about a fixed horizontal axis passing through the centre of the disc. A piece of the disc from its rim detaches itself from the disc at the instant when it is at horizontal level with the centre of the disc and moving upward. Then 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 decrease initially and later

Answer

A, D