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Answer on Mechanics | Relativity Question for Sahil

Question #63633
A coin has a weight of 100 grams and rotates on a horizontal disc with frequency of 1 hertz. The coin is at a distance of 10 cm from the axis of the disc. What is the frictional force that acts on the coin?
How much is the frictional force constant between the coin and the disc , when the coin is at 16 cm from the centre of rotation of the disc?

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