P$4.($This problem is about the force$-$couple system simplification.$)$

a$)$ Determine the magnitude and direction of the equivalent resultant force at $A.$

b$)$ Determine the magnitude and direction of the equivalent resultant moment at $A.$

c$)$ Draw the final equivalent system simplified at $A.($Show the resultant force and couple moment at A on your figure!$)$

d$)$ Further replace the loading on the frame by a single equivalent resultant force and specify where the force acts, measured from $A.($Draw the final equivalent system!$)$

Note: In solving the problem, take the magnitudes of the couple moment and the force shown in the figure as

take,

M$=100$ N$*$m

F$=200$ N