A long string is wrapped around a 6.3-cm-diameter cylinder, initially at rest, that is free to rotate on an axle. The string is then pulled with a constant acceleration of 2.0 m/s2 until 1.5 m of string has been unwound. If the string unwinds without slipping, what is the cylinder's angular speed, in rpm, at this time
The Attempt at a Solution
I am not even sure how to really start this problem. I used C=2pi*r and got .1979m so I know that is the distance of each revolution. So then I did 1.5/.1979 and got 7.5788 total revolutions. I am not sure if I even need to do that but that is all I have come up with. I am not sure where to go from here.