Consider the beam in Figure 2 and answer all questions given below. E-210GPa and I-3.05x10* m* a) Explain with the help of calculations, how many rows and columns are required in the global stiffness matrix to represent the below system. [CLO1-PLO1-C2:2marks] b) Use the 2D direct stiffness method and create local as well as global stiffness matrix. [CLO2- PLO2-C2:5marks] c) Examine the system below using the direct stiffness method to calculate the following unknowns i. Global deflection matrix [CLO4-PLO2-C4-3marks] ii. Global force matrix [CLO4-PLO2-C4-3marks] iii. Local deflection matrices [CLO4-PLO2-C4-3marks] 6 kN 1.5 m 4KN/m 3m Figure 2. Beam Element 4 kN-m 1m 1 m