1. $AC$ is a light rod, and $B$ is the point on $AC$ such that $AB:BC=1:2$.  A force of 14 N is applied to the rod at point $B$, with the line of action of the force making an angle of $30^{\circ}$ with $AC$ as shown in the diagram below:

Given that the moment of the force about point $A$ is 2.24 Nm  clockwise, find

(i) the length of rod $AC$,

(ii) the moment of the force about point $C$.