2) In the figure below, aluminum [E = 70 GPa] Members (1) and (2) support rigid beam ABC. Member (1) has a cross-sectional area of 450 mm² while member (2) has a cross-sectional area of 300 mm². For an applied load of P = 55 kN, determine: a) The deformation of Member (1). b) The deformation of Member (2). [Ans. to check: 6.67 mm elongation] c) Assume that Member BC is rigid (i.e. it does not bend). Using geometry, calculate the beam's deflection at point B. Hint: sketch the deflection of the beam based on how Members (1) and (2) are deforming. 2,500 mm (2) 4,000 mm (1) 1,400 mm B P 800 mm