SOLUTION: A tire for a compact car measures 25 inches in diameter. The car is traveling at a speed of 55 mph. Find the nearest integer, the number of revolutions per minute, RPM, the tire ma
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Question 467382: A tire for a compact car measures 25 inches in diameter. The car is traveling at a speed of 55 mph. Find the nearest integer, the number of revolutions per minute, RPM, the tire makes.
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
C=2πr=25π=78.54 inches
55 mph=55/60 mpm =.9167 miles per minute
.9167 mpm x 5280 feet per mile x 12 inches per feet/78.54 inches per revolution=
739.5 revolutions per minute..
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