Task 00082.

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There is a coin at the edge of the disk with radius R. The disk spins up so that the angular velocity increases linearly with time w = et. At what point in time will the coin fly off the disk if the coefficient of friction between the disk and the coin is nude? What is the angle with the direction to the center of the disc forms the friction force at this moment?

Detailed solution with a brief record of the conditions, formulas and laws used in the decision, the conclusion of the calculation formula and the answer.
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Task 00082.

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