Soru 5: As an example of a simple direct integration problem, consider the case of a uniform prismatic bar stretched by its own weight. The body forces for this problem are Fx = Fy = 0, Fz = -pg, where p is the material mass density and g is the acceleration of gravity. Assume each cross-section has uniform tension produced by the weight of the lower portion of the bar, the stress field would take the form. Determine stress, strain and displacement fields A