Show me the steps to solve Problem $2.[5$ Marks$]$

A load of $75$ kN is applied at a distance of $150$ mm on a bracket plate

ID $(0000000$uarr$+20)mm$ thick. The plate is welded to the flange of a column by

ID $(0000000$uar$\frac{r}{3}+8)mm$ fillet welds on either side of the plate as shown in figure.

Determine the length of the weld required if the permissible stress for the welds

is $ID(000000$uarruarr$+80)MPa.$