A sign (mass 1900 kg) hangs from the endof a vertical steel girder with a cross-sectional area of0.18 m2. (Ignore the mass ofthe girder itself.)
(a) What is the stress within the girder?
N/m2
(b) What is the strain on the girder?
(c) If the girder is 9.55 m long, howmuch is it lengthened?
mm