Let tension member EF be added to the structure in Figure E5.12 as indicated in Figure P5....

Let tension member EF be added to the structure in Figure E5.12 as indicated in Figure P5.60. All members are aluminum, for which E = 72 GPa. Members BC, CD, and DE each have cross-sectional area of 900 mm2. The remaining members have cross-sectional area of 150 mm2. Load magnitudes are P = 10 kN and Q = 5 kN. Determine the axial force in member EF and deflection of point E in the direction of force P.

FIGURE P5.60

FIGURE E5.12