Wheel gear

A drive wheel of radius 2 is connected to a drive wheel of radius 1 by a pulley of length 17. What is the distance between the wheel axles?

Correct answer:

x =  3.7876

Step-by-step explanation:

r1=2 r2=1 r=17  o1=π r1=3.1416 26.2832 o2=π r2=3.1416 13.1416  r=2 x+o1+o2  x=(ro1o2)/2=(176.28323.1416)/2=3.7876

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