A beam $PQ$ of uniform density lies horizontally on a support at point $S$. A rope is fixed to one end of the beam. The rope makes an angle of $60^{\circ}$ with the vertical and applies a force $F$, measured in newtons, to the beam. What is the moment, in $\text{N m}$, of the force $F$ about point $S$?
- A$1.1F$
- B$1.3F$
- C$1.9F$
- D$2.2F$