Question $2$:

The slab shown in Figure $2$ is subjected to three parallel forces.

Figure $2$: Illustration of the information provided in Question $2$

a$)$ Express each force in a cartesian vector form.

b$)$ Determine the equivalent resultant force and couple moment at the origin $\backslash ($ O $\backslash ).$

c$)$ Find the location $(\backslash ($ x$,$ y $\backslash ))$ of the single equivalent resultant force.