A rigid beam \(A B\) is suspended horizontally from rods land 2 as shown in Fig. 13.62. Rod 1 is of steel and has \(15 \mathrm{~mm}\) diameter, while rod 2 is of copper and has \(20 \mathrm{~mm}\) diameter. At what distance from rod 1 must the load \(P\) be applied if the beam \(A B\) is to remain horizontal after the deformation or rods.If \(P=30 \mathrm{kN}\), calculate the stresses in the rods.

Take \(E_{s}=200 \mathrm{GPa}\) and \(E_{c}=100 \mathrm{GPa}\).

1 1.0m X 1.5m. Fig. 13.62 2 0.75m