A simple cuestion about Island 3

> Island 3 is a cylinder of 3 or 6 Km radius that spin enought to
> produce
> a centrifugal force similar a G: 9'8 m/s
> The Sun Light enter through the windows, from mirrors located in a
> structure tilted about 30 degrees, as long as the cylinder.
>
> My question is:
> How strong is the centrifugal force in the extreme of the mirrors?.
>