+0  
 
 #1
avatar+124594 
+1

The radius doesn't matter....we're just concerned about the revs

 

2pi radians in one rev

 

So   in one second it makes     100   / [ 2pi ]   = ( 50 / pi )   revs

 

5 min  =   300 sec

 

So

 

300 (50 /pi)  =   15000  / pi   revs ≈   4774.6 revs

 

 

cool cool cool

 Apr 15, 2022

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