2. An industrial machine requires a solid, round connecting rod 1 m long (between pinned ends) that is subjected to a maximum compressive force of 80,000 N. Using a safety factor of 2.5, what diameter is required if steel is used, having properties of Sy = 689 MPa, E = 203 GPa? Check with the yield strength to make sure your design is safe. Also find the slenderness ratio.