+0  
 
0
53
1
avatar

How many revolutions will a car wheel of diameter 18 in. make as the car travels a distance of one mile? (Round your answer to the nearest whole number.)

Guest Apr 19, 2018
Sort: 

1+0 Answers

 #1
avatar+86613 
+1

The radius  is 9in  =  3/4 ft 

The distance that the whell travels in one revolution  is    2pi * (3/4) ft  = (3/2)pi ft = (1.5pi ) ft

The number of feet in a mile  = 5280

 

So....the number of revolutions it makes is

 

5280 /[ 1.5pi ]  ≈     1120 revolutions

 

 

cool cool cool

CPhill  Apr 19, 2018

23 Online Users

avatar
New Privacy Policy (May 2018)
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  Privacy Policy