gement 1 / 1 200% +1 2-77. Specify the magnitude F3 and directions a3, B3, and y3 of F3 so that the resultant force of the three forces is FR = (9 j} kN. 2-79. Determine the magnitude and coordinate direction angles of the resultant force acting on the bracket. Fa Y3 13 5 B312 45 F2 = 10 kN 30 45 30 60 F2 = 600 N y F= 12 kN F=450 N