What is the Angular Speed of a Disk Pulled with a Constant Force?

[MillerGenuine]

Homework Statement

A 6kg disk with radius 0.3m initially not spinning. String is wrapped around disk, you pull with constant force of 25N through a distance of 0.6m. What is its angular speed.

Homework Equations

K_rotational=1/2 I w²

The Attempt at a Solution

I can't seem to figure this out. I found moment of inertia no problem (0.27), but I am stuck there. I can't seem to relate Force and Distance to angular speed.

 

[MillerGenuine]

Any help?

 

[MillerGenuine]

Bueller...