A cylinder of radius R = 8.00 cm is on a rough horizontal surface. The coefficient of kinetic friction between the cylinder and the surface is 0.250 and the rotational inertia for rotation about the axis is given by MR 2/2, where M is its mass. Initially it is not rotating but its center of mass has a speed of 9.0 m/s. After 3.00 s, what is the speed of its center of mass?

There is a similar problem already posted, but I am not quite understanding it. So do you find how far the cylinder slides before starting to roll? And how exactly does that relate to the kinetic friction? Then after the cylinder begins to roll, how do you find the distance it travels from there?