The Math:
Diameter of 235/85/16 tire is 31.7"
31.7" = diameter of circle (tire)

π = 3.141592654...is the ratio between the circumference and diameter of a circle
c = π⋅x d (C=99.59 inches)
1 mile = 5280 feet or 63,360 inches
63,360 ÷ 99.59 = 636.2084546641229 revolutions per mile

99.59 ÷ 12 = 8.299166666666667 feet
5280' ÷ 8.299166666666667' = 636.2084546641229 revolutions per mile
so
every ≈8.29[r13] feet the tire is making one complete revolution.

A mile has 5,280 feet, and an hour has 3,600 seconds, so 60 miles per hour is: 60 x 5,280 / 3,600 = 88 fps.
60 mph = 1 mile per minute
1 mile per minute = 88 feet per second
at 99.59 inches circumference, tire has rotated ≈10.6[r13] times in 1 second.

strange as it sounds, the math verifies the numbers.

Flash was correct.

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Supporting Vendor and Moderator of LOST
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