Question Number: #Phy8921

A coin kept on a rotating gramophone disc just begins to slip if its centre is at a distance of 8 cm from the centre of the disc. The angular velocity of the gramophone disc is then doubled. Through what distance, the coin should be shifted towards the centre, so that the coin will just slip?


Options:
A.) 2 cm
B.) 16 cm
C.) 4 cm
D.) 6 cm


Answer is option : A

Question Related Topics:
Circular Motion
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