Example: Determine the Number of Revolutions Per Second of a Car Tire

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This video provides an example of how to determine the revolutions per second of a car tire traveling at a given speed.
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why the final conversion, ie inch/sec divide by 11 inch but not 14inch because circumference (the blue line) has 14 inch diameter?

Cyprusfire
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could you please solve this one?
A certain care wheel has a area of 3600πcm2 and its radius is x/2m. the car’s wheels turn through 100ᴼ about its centre, which is the rotation fixed, in 1/18 seconds
Find the value of the radius.
If a point on the rim of the wheel travels 32.4π km. how long does it take to travel that distance?

markmcsision-qbsf
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Sorry! Re watch the video and understand the 11 inch.

Cyprusfire
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"I hope this was helpful" It was, thank you

millkmilles
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Lol whos here watching this to tune their race car though?

christianz