2.00 in., the diameter of brass rod (2) is 1.75 in., and the diameter of steel rod (3) is 3.00 in. Determine the axial normal stress in each of
the three rods. Assume P = 8 kips, Q = 4 kips, R = 10 kips and S= 21 kips. The normal stress is positive if tensile and negative if
compressive.
Fig: 1