Determine the magnitude of the horizontal and vertical components of the force that pin A exerts on the frame. Determine the magnitude of the horizontal and vertical components of the force that pin B exerts on the frame. Let the lengths be: L1 = 5m, L2 = 7.5m, Ly = 1m, L4 = 5m. Let the forces be: F1 = 3.5kN, F2 = 2kN, F3 = 2kN. F2 F1 B C O O L3 F3 D A O O L2 . L2 While solving this question please assume on your free body diagram (FBD) that the reaction forces at joints A and B are positive. If you obtain a negative answer, enter the negative value in the box, this indicates that the reaction force is in the opposite direction relative to the initial direction of the force as indicated on the FBD. The magnitude of the reaction forces at pin A are: FAI = KN, FAy = KN. The magnitude of the reaction forces at pin B are: FBI = KN, FBy = kN