Question

mester One Final Examinations, 2018 ENGG1400 Engineering Mechanics: Statics and Dynamics Question 17 (5 marks) A beam with loads and reactions is shown in Figure 17. The equation for the internal bending moment for a hypothetical cut at 35x55 is given by: A: BM = -2x2 + 10 x B: BM = -x2 + 8.5 x +ve BM BM C: BM = -2x + 10 Ax V D: BM = -x2 + 10 x +4 E: BM = -x2 + 10 x 7+3 Figure 17 4N 4.5kN 3kN/m 2kN/m А HA=0 KN VA 2m 2m 1m 2m 3m V8 = 8.5 kN VA = 8.5 kN

Answer 1

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and from the given figure we can get all loads Reactions is the distance from left support then Bending moment equation is Mxe 8.5CX) –(3x3)(*-x3 ) - 2(x-3)(2-3) = 8.5x-4p. 5(x-2)-(2-372 8.58.4.5x49-(x26&ta) 8.58.4.5x+q-x76x_q 2 48468-22 2 10x - x Mx = -x + 10x . Choose option CE)