A vertical bar is known to have dimensions 100" by 1" by 4" priorto application of a load, to have elastic modulus equal to107 psi, and to have a Poisson's ratio equal to 0.3.Suppose the bar is built in at the bottom and a mass of unknownweight is mounted on the top of the bar. Ignoring the weight of thebar, if the measured cross-sectional dimensions under the weightare now 1.003 and 4.012, what is the weight?