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A hamster runs at a speed of 12 centimeters per second in a wheel of radius 12 centimeters.

 How fast will the wheel spin in revolutions per minute?  

 Mar 31, 2020
 #1
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12cm/ s * 60 s  =   720 cm   = distance  traveled  by  the wheel in one minute

 

Circumference of the wheel  = 2pi (12)  =  24 pi cm

 

Revs per minute =     720  /  [24 pi ]  =  30 / pi    ≈  9.54  revs/ minute

 

 

cool cool cool

 Mar 31, 2020

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