P$\mathrm{.}2.(20$ points$)$ Two forces vec$(P)$ and vec$(F)$ are applied on the pole as shown on the right, with $P=300N$ and $F=500$ N $.$ Replace the two forces with an equivalent result force vec$(R)=R_x$vec$()+R_y$vec$()$ and couple moment vec$(M{)}_A=M_A$vec$(k)$ at point $A.$