Define kinetic friction between wheel and wet rag

Reference no: EM1382798

Q. A potter's wheel having a radius 0.450m and a moment of inertia 15 kg•m2 is rotating freely at 45 rev/min. The potter can stop the wheel in 7.50 s by pressing a wet rag against the rim and exerting a radically inward force of 68 N. Find out the effective coefficient of kinetic friction between wheel and wet rag.

Reference no: EM1382798

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