Q$5)$ The below load$-$elongation data were obtained for a specimen with $L_0=50mm$ and $d_0=12\mathrm{.}5mm.$ Plot the stress$-$strain data and determine the $E,{}_u,{}_f,P_y$ and $P_u$

$\backslash$table$[[$Load $(kN),$Elongation $($mm$)],[0,0],[11\mathrm{.}1,0\mathrm{.}0175],[31\mathrm{.}9,0\mathrm{.}0600],[37\mathrm{.}8,0\mathrm{.}1020],[40\mathrm{.}9,0\mathrm{.}1650],[43\mathrm{.}6,0\mathrm{.}2490],[53\mathrm{.}4,1\mathrm{.}0160],[62\mathrm{.}3,3\mathrm{.}0480],[64\mathrm{.}5,6\mathrm{.}3500],[62\mathrm{.}3,8\mathrm{.}8900],[58\mathrm{.}8,11\mathrm{.}9380]]$