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A bicycle is traveling at 11 miles per hour. The bicycle's tires have a radius of 13 inches. What is the rotational speed for either of the tires in radians per minute?

 Jun 10, 2021
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11 m/hr * 5280 ft / mi  * 12 in / ft * 1 hr /60 min = 11616 in/min

 

Circumference circle = 2 pi r  

    

  13 in * 2 * pi = circumference of wheel per  revolution

 

11616  in/m  /  26 pi in / rev  =    142.21  rev /min

 

142.21 rev / min  *   2pi Radians / rev = 893.54  R/min

 Jun 10, 2021

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