The allowable normal stress for the bar is allow $20$ ksi take t$=1$ in$,$ d$=0\mathrm{.}36$ in$,$ h$=1\mathrm{.}5$ in$,$ w$=1\mathrm{.}8$ in$,$ r$=0\mathrm{.}15$ in$.$ Determine the maximum axial force P that can be applied to the bar and the maximum axial force P that can be applied to the bar if the hole did not exist