$6\mathrm{.}2\mathrm{.}5$ Deformation

Inter nediate

Given the information in the graphic above, what is the total deformation of the aluminum $(E_{Al}=73[$GPa$])$ bar system due to loading? The cross$-$sectional area of member $AB$ is taken as $25[m{m}^2],$ and that of member $BC$ is taken as $75[[$:$m{m}^2\}.$ Units taken as $[$m$]$; do not report units with your answer. The use of significant digits is not required. If the bar is extending by this amount report a positive value. If it reduced by this amount report a negative value.