1.

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

Answer»

REMAINING DISC remains unchanged
remaining disc decreases
remaining disc increases
BROKEN away PIECE decrease INITIALLY and later

Answer :A::D


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