An aluminum cantilever beam is 500 mm long and has a cross-section as shown. All wall thicknesses are 5 mm. A lateral force of 2.0 kN in the negative y-direction is applied to the free end of the beam. For aluminum let E = 69 GPa.  

(a) Determine the maximum tensile and compressive bending stresses. 

(b) Determine the maximum shear stresses in each web wall due to the transverse shear force in the section. 

(c) Determine the maximum bending deflection of the beam in the negative y-direction.

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