What is the highest speed of the disk

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Q. A penny of mass 3.10 g rests on a small 22.40 g block supported by a spinning disk of radius 11 cm. The coefficients of friction between block and disk are 0.715 (static) and 0.64 (kinetic) while those for the penny and block are 0.564 (static) and 0.45 (kinetic).

What is the highest speed of the disk without the block and penny sliding? The acceleration of gravity is 9.8 m/s2.

Reference no: EM1390615

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