Diameter A da=140mm and diameter B db=140mm. What is the vertical displacement that occurs in the middle of the AB rigid beam?

Hi there sir/madam  I need help on this question  A beam with a solid homogeneous rectangular section is simply supported at A and B.   A concentrated load F = 150 kilonewtons (kN) acts at point C where distance L1 (A to C) = 2.50 metres (m) and distance L2 (C to B) = 1.65 metres (m). The dimensions of the rectangular section of the beam are breadth, b = 35 mm and depth d = 125 mm. Calculate the maximum bending stress and give your answer in N/mm2 to two decimal places

If F1= 24kN F2=26kN F3=21.5kN   Calculate the second area of moment of the beam using the dimensions in the attached image

Given the beam shown below, determine the shear force and bending moment at point C. Given the dimensions a = 2 m, b = 5.9 m and c = 2 m, and the load intensities e = 10 kN/m and f = 2 kN/m. e kN/m f kN/m am bm cm A B D Shear force (observe the up on the left, down on the right positive sign convention): SFc = Number Units (tolerance 0.2 kN) Bending moment (observe the sagging positive sign convention): BMc = Number Units (tolerance 1 kN*m)