A rectangular block as shown in fig. Assume Poisson's ratio as $0\mathrm{.}25,$ find in terms of the modulus of elasticity E of the materials the strain in the direction of each force. I $E=2{10}^5$MPa, find the value of modulus of rigidity and bulk modulus for the material of the block. Also calculate the change in the volume of the block due to the application for the load.

Ans: $dv=325m{m}^3,K=1\mathrm{.}33{10}^5$MPa,$G=0\mathrm{.}8{10}^5$MPa