Onasteelrodof0.5cm2 sectionandlength75cmthreeweightsof2teachare
fixed at a distance of 25 cm from each other. The lower weight hangs on the
end of the rod. Draw graphs regarding elongation (strain) and displacement
of rod sections. The Young’s modulus of steel is 2⋅1011 Pa. What is the tensile
strain of the entire rod?