Q3
Circular Motion 1
Rotating Platform / Turntable Friction Problems
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A coin placed on a rotating table just slips when it is placed at a distance of 1 cm from the centre. If the angular velocity of the table is halved, it will just slip when placed at a distance of $\_\_\_\_$ from the centre:
(1) 8 cm
(2) 4 cm
(3) 1 cm
(4) 2 cm