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Consider a propped cantilever beam of length

`2l`

subjected to a uniformly distributed load

`w`

per unit length, as shown in the figure. Assume that the beam cross-section is a solid square with side

`a≪l`

. (9 marks) (i) Draw the shear force and bending moment diagrams. (ii) Derive an expression for the magnitude of the maximum bending stress in the beam.