1. The problem statement, all variables and given/known data A cylinder is initially at rest, how long will it take for the cylinder to turn one revolution? 2. Relevant equations (Theta)f=(Theta)i+(alpha)(deltaT) 3. 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?