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Applying NLM along 3 Axis

.A disc revol...

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.A disc revolves in horizontal plane at a steady rate of 3 rev/s. A coin just remains on the disc if kept at a distance of 2 cm from the axis of rotation.What is the coefficient of friction between thecoin and the disc(A) 0-5(C) 0-7(B) 0-65(D) 0-75.

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