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A pulley with a diameter of 24 inches is driven by a belt which is moving 1045 ft/min. How many revolutions per minute are made by the pulley?

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Circumference = pi*D = 3.14*2ft. = 6.28ft

Vp = Vb = 1045 ft./min

1045ft./min * 1rev./6.28ft = 166.4 rev/min.

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