Mechanics of Materials Assignment One 1. A bar 0.3 m Long is 50 mm Square in section for 120 mm of its length,25 mm diameter for 80 mm and of 40 mm diameter for the remaining length. If a tensile force of 100 kN is applied to the bar, calculate the Maximum and Minimum stresses produced in it, and the total elongation. Take E-200 GN/m² and assume uniform distribution of load over the cros- sections.
