The net force is (D) 60 N, RightTo find the net force, we just have to add all the forces. Take note that the forces from the left will become negative because it's opposite. The direction will be right because it is the dominant force.[tex]\sf F_{net} = F_1 + F_2 + F_3[/tex][tex]\sf F_{net} = 30 \ N + 50 \ N + (-20 \ N)[/tex][tex]\sf F_{net} = 60 \ N[/tex][tex]\sf F_{net} = 60 \ N, \ left[/tex]