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## Homework Statement

A cylinder is initially at rest, how long will it take for the cylinder to turn one revolution?

## Homework Equations

(Theta)f=(Theta)i+(alpha)(deltaT)

## The Attempt at a Solution

I know that the distance of the cylinder to turn one revolution is 2Pi over speed. My speed was 0.05 rad/s so i divided 2Pi/0.05 rad/s and it did not give me the right time which is 15.9 sec. Help?