Three forces are applied to a bracket as shown. Point A lies at the origin of the $xy-$axes.

$F1=70N,F2=140N$ and $F3=105N$

a$)$ Replace the system by an equivalent force$-$couple system at $A.$

Resultant Force Component in $x$ direction $=$

Resultant Force Component in y direction$=$ N

Moment MA $=$ N$.$m

b$)$ Determine where the equivalent single force line of action intersects the $y-$axis measured from $A.$

YR measured from A$=?$ m