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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