Consider the truss below, lo 2 1m 0.5m 1 3 1m 1m The truss members are made out of steel with a modulus of elasticity of E = 210 GPa and the area of the cross section is 25 cm? Assume that a force of P = 90 kN is applied at the node 2. (a) Using MATLAB, determine the overall global stiffness matrix K. (b) Calculate reaction forces and displacements. Show both X and Y components of forces and displacements on each node. (c) Plot the original and a "scaled" deformed truss structure. The coordinates of the deformed structure are obtained by scaling the calculated displacements, and adding them to the original coordinates. Use a scaling factor of 200 to make the deformed shape visible. Include the title, axis labels and legend. Consider the truss below, lo 2 1m 0.5m 1 3 1m 1m The truss members are made out of steel with a modulus of elasticity of E = 210 GPa and the area of the cross section is 25 cm? Assume that a force of P = 90 kN is applied at the node 2. (a) Using MATLAB, determine the overall global stiffness matrix K. (b) Calculate reaction forces and displacements. Show both X and Y components of forces and displacements on each node. (c) Plot the original and a "scaled" deformed truss structure. The coordinates of the deformed structure are obtained by scaling the calculated displacements, and adding them to the original coordinates. Use a scaling factor of 200 to make the deformed shape visible. Include the title, axis labels and legend