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A small coin (mass m) is placed on a disc that is rotating at a constant...

A small coin (mass m) is placed on a disc that is rotating at a constant angular speed ω. You know that the coefficient of static friction between the coin and the disc is μ. Determine the largest distance r from the axis of rotation that the coin can be placed so that it will not fly off the rotating disc.

Reflection suggestion: Does the largest distance get bigger or smaller if you increase ω?

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