Solved: A sign (mass 2100 kg) hangs from the end of a

A sign (mass 2100 kg) hangs from the end of a vertical steel girder with a cross-sectional area of 0.15 m2. (a) What is the stress within the girder? (b) What is the strain on the girder? (c) If the girder is 9.50 m long, how much is it lengthened? (Ignore the mass of the girder itself.)