Problem 14. A solid cylinder of mass m and radius r is free to rotate about an axis which is perpendicular to the page and which passes through its center.

The cylinder is started from rest bya constant horizontal force F applied tangentially (and perpendicularly to the rotation axis). Find the kinetic energy of the cylinder after a time t. (Hint: the moment of inertia of a solid cylinder isI =mr2). Express your answer in terms of whatever variables are needed.