A rectangular plate is acted upon by the force and couple shown. This system is to be repl...

A rectangular plate is acted upon by the force and couple shown. This system is to be replaced with a single equivalent force, (a) For α= 40°, specify the magnitude and the line of action of the equivalent force, (b) Specify the value of a if the line of action of the equivalent force is to intersect line CD300 nun to the right of D.