The simply supported beam carries a uniform load of 2 kip/ft . Code restrictions, due to...

The simply supported beam carries a uniform load of 2 kip/ft . Code restrictions, due to a plaster ceiling, require the maximum deflection not to exceed 1/360 of the span length. Select the lightest-weight A992 steel wide-flange beam from Appendix B that will satisfy this requirement and safely support the load. The allowable bending stress is σ_allow = 24 ksi and the allowable shear stress is τ_allow = 14 ksi . Assume A is a pin and B a roller support.