The wheels of a car have a radius 11 in and arc rotating at 1500rpm. How do you find the speed of the car in mi/h?

1 Answer
Binayaka C.
May 28, 2018

The speed of the car was 98.17 miles/hour

Explanation:

r=11 inches , revolution =1500 per minute

In 1 revolution the car advances 2*pi*r inches

r=11 :. 2 pi r= 22 pi inches .

In 1500 revolution/minute the car advances 22*1500*pi

inches = (22*1500*pi*60)/(12*3*1760)~~98.17(2 dp)mile/hour

The speed of the car was 98.17 miles/hour [Ans]

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