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Dr. K. Mensah-Darkwa Question 4 Construct the shear-force and bending-moment diagrams for the beam shown. Label all significant points on each diagram and identify the maximum moments along with their respective locations. Additionally: a) Determine Vand M in the beam at a point located 0.75 m to the right of B. b) Determine Vand Min the beam at a point located 1.25 m to the left of C. 125 kN 50 kN/m B TRIC 0 3. 15. Question 5 A 20-mm-diameter solid steel shaft supports loads PA = 500 N, Pc = 1,750 N, and PE = 500 N as shown in Figure below. Assume L₁ = 90 mm, L2 = 260 mm, L3 = 140 mm, and L4 = 160 mm. The bearing at B and D can be idealized as a roller support. Determine the magnitude and location of the maximum bending stress in the shaft. A B C D E L₁ LA PA Ans: 116.5 MPa Question 6 Construct the shear-force and bending-moment diagrams for the beam shown. Label all significant points on each diagram and identify the maximum moments (both positive and negative) along with their respective locations. Clearly differentiate straight-line and curved portions of the diagrams. 60 kN 45 kN/m B A,A X (m) 0 2.5 L2 5. 9.