10-01-2017
Mathematics

contestada

the tires on a certain car are 25 inches in diameter if the car is moving at a constant speed of 65 mph how many rotations is the front left tire making (1 mile = 5280 feet)

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Jabbypappy Jabbypappy

10-01-2017

The circumference of the tire is 25pi, and converting that to ft would be 2 1/12, so each mile (5280 feet), the tire makes 806.7245755441991
Rotations (in ft) per mile.

Because 2 1/12 times pi = 6.544984694978736, and 5280 (1mile) divided by that is about 806.7 rotations per mile

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