3. The beam shown below is suspended from two steel rods as shown and is initially horizontal. The midpoint B of the beam is deflected 15 mm downward by force Q. The steel used for the rods has properties E = 200 GPa and o = 275 MPa, determine a. the required maximum value of Q. b. the deformation of rod AD. c. the deformation of rod CE. Areas: E AD = 400 mm² CE = 500 mm² 5 m 2 m A B C -2 m-→-2 m-

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