Question $1$

As shown in figure, the pole $AC$ is supported by cable $AB$ and $AD.$ If the height of $AC$ is

$2\mathrm{.}5$ m $,$ the $AB$ s tension is $600$ N and the $AD$ s tension is $200$ N $,$ determine the magnitude

and direction of the resultant of the forces exerted by the stays at $A.$