Answer :
Answer: The number of revolutions the tire makes per minute= 840.76
Step-by-step explanation:
Given : Diameter of tire = 24 inches
Speed of car = 60 mi/ hr
We know that 1 mile =63360 inches and 1 hour = 60 minutes
Then, Speed of car = ( 60 mi/ hr) x( 63360 inches) ÷ (60 minutes)
[tex]=\dfrac{60\times63360 }{60}[/tex] inches/minute
=63360 inches / minute
Circumference of tire = [tex]\pi (diameter)[/tex]
[tex](3.14)(24)=75.36\ inches[/tex]
Now , the number of revolutions the tire makes per minute = [tex]\dfrac{\text{speed of car}}{\text{Circumference of tire}}[/tex]
[tex]=\dfrac{63360}{75.36}=840.76433121\approx840.76[/tex]
Hence, the number of revolutions the tire makes per minute= 840.76