1. A 1 2 -in.-diameter steel rod projects 2 ft horizontally from a concrete wall. Calculate the maximum bending stress due to a vertical load of 12 lb at the free end. Neglect the weight of the rod.
2. Calculate the maximum bending stress in a W530×101 steel beam that spans 13 m on simple supports and supports two equal concentrated loads of 54 kN each. The loads are placed at the third points. Include the weight of the beam.