Given that $a=4\mathrm{.}5m,b=2\mathrm{.}5m,c=5\mathrm{.}5m,d=1\mathrm{.}5m,e=9\mathrm{.}0m$ and $=32.$ The force $F=173N$ is along the direction of CD$.$ Determine

the moment of the force $F$ about the door hinge at $A$ by using $r_{AD}$ and $r_{AC}.$ Note that A and $B$ are hinges and their exact locations are shown by

black dots, they are in $xy$ plane.

Find moment $M_A$ using $r_{AC}$ :

$M_A$:$(,i+,j+,k)N*m$

Find moment $M_A$ using $r_{AD}$ :