Determine the deflection at B$.E$ is $200$GPa,I $($moment of inertia$)$ is $2\mathrm{.}5{10}^{-}$

$5m^4$ and $a=2\mathrm{.}5m.P=1kN.$ You must use the moment$-$area method. Explain every

step of the calculation process, from the determination of the reactions, the plotting

of the M$/$El vs $x$ graph, the calculation of the area moments and the calculation of

the deflection of $B.$ Express the deflection in $mm$ as a negative number since $B$ will

move down.