Unformatted text preview: We can now use s r = to connect linear and angular speeds and derive the formula v r = = , where r is the radius of the circle. ex : A truck has tires with a 2 foot radius. If the tires are making 300 rpms, how fast is the truck moving (in mph)? ex : A belt moving 3 feet per second is rotating a pulley with a radius of 4 inches. How many rpms is the pulley making? There is an inverse relationship between size and rate of rotation when two rotating circles interact with one another. ex : Two meshed gears are rotating. The larger gear has a radius of 3 inches and the smaller has a radius of 2 inches. If the larger gear makes 120 rpms, how many does the smaller gear make?...
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 Fall '09
 COHEN
 Trigonometry, Frequency, 3 feet, 2 foot, 2 inches, 3 inches, 2 seconds

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