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1. A pulley is turned 120 degrees per second.

a. find the number of revolutions per minute (rpm)

b. if the radius of the pulley is 5 inches, find the linear velocity in inches per second. 

Guest Mar 24, 2018
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 #1
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1. 

a)  It makes one revolution every 3 seconds....so....it makes 20 revolutions every minute

 

b)  The linear velocity  is  2pi  (5) ( 120 /360)  =   (10/3)pi  inches per second

 

 

cool cool cool

CPhill  Mar 24, 2018

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