how many revolutions per minute a car wheel makes when traveling at 60 mph and the radius of the car wheel is 14 inches.

Answer 1

The tire goes 1 circumference every revolution, which is 2*pi*R = 2*pi*14inches = 28pi inches

60 miles/hour is 1 mile/minute = 5280 ft/minute = 63,369 inches/minute

So, 63,369 inches/minute x 1 revolution/28pi inches = 2262.86/pi rev/min = 720.3 rev/min