Asked by erin

an automobile tire has a diameter of 36 inch.how many revolution will the wheel make an arc the automobile travels 1 mile (5280 A)?
Answered by drwls
One mile is 5280 feet, not 5280 Angstroms.

If N is the number of revolutions of the tire in one mile,

pi*D*N = 5280 feet
D = 3 feet
N = 5280/(3 pi) = 560.2 revolutions