The Tires on an Automobile Have a Radius of 0

question 6

Multiple Choice

The tires on an automobile have a radius of 0.34 meters. If the tires make 12 revolutions per second, find the speed of the car in kilometers per hour (kph) . Round to the nearest tenth. [1 km = 1000 m and 1 hr = 3600 s]

• A) 92.3 kph
• B) 46.1 kph
• C) 14.7 kph
• D) 29.4 kph

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