A steel bar (modulus of elasticity=200GPa) of 50cm diameter and 100m length is subjected to a tensile stress of 400MPa within the eiastic range. its poissons ratio is 0.25 . Estimate final length and diameter. If this material nypothetically follows non-linear elastic pehavior with a non-inear constant of 1.5 , estimate the pseudoplastic modulus for the same strain. [6M]