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Find the speed of a vehicle whose wheels are 20 inches in diameter are making 53 rotations per minute.?
Wiki User
∙ 12y ago
each rotation = circumference = (pi) x (diameter) = 20 pi inches
(53 rotation/minute) x (20 (pi) inch/rotation) x (60 minute/hour) x ( 1 foot/12 inch) x (1 mile/5,280 feet) =
(53 x 20 pi x 60)/(12 x 5,280) = 3.153miles/hour (rounded)
Wiki User
∙ 12y ago
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