What I Can Do When we combine or add forces to determine the net or resultant force, we will limit to those forces which act along the same line of action. The algebraic signs and – are used to indicate the direction of forces. Unlike signs are used for forces acting in opposite directions, see figure 22 below. The force of gravity (Fg) and the normal force (FN) are assigned opposite signs. FN is given a positive ( ) sign while Fg is given a negative (-) sign. If both Fg and FN eto answer guys What I can do B F A = F net F 1. = 5N 5 N = 10 N, or 10 N to the right B F A = F net a. F 2. 10 N 5 N - = 5 N, or 5 N to the left - = b. Yes c. To the left C F B F A = F net a. F 3. 5N 5 N - = 10 N, or 10 N to the - = left b. yes to the left​