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Subjects>Math>Math & Arithmetic

How many rpm does a 18 inch dia wheel turn at 80 mph?

Anonymous

∙ 13y ago

Updated: 10/31/2022

The circumference of an 18 inch diameter wheel is 3.14159 times 18 inches, or about 4.712 feet. 80 miles per hour is 80 times 5280 divided by 60, or about 7040 feet per minute. Divide 7040 by 4.712 and you get about 1494 revolutions per minute.

Wiki User

∙ 13y ago

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