A tensile load of 50,000 lb is applied to a metal bar with a
0.6 in x 0.6 in cross section and a gauge length of 2 in. Under
this load, the bar elastically deforms so that the gauge length
increases to 2.007 in and the cross section decreases to 0.599 in x
0.599 in. Determine the modulus of elasticity and Poisson’s ratio
for this metal.