11-12 a-d Determine the deflection of the loading point (the point at which the load is applied, in the direction of the load) for the trusses given below. All elements are constructed of 20 mm diameter round carbon steel rods. 1 m 251 (a) 2.5 kN 0.4 m 0.6 m Im 0.7 m) (c) 3 kN 1 m (b) 1.2 m (d) 2 kN 2 kN