$($b$)$

P$2\mathrm{.}8-4$

${?}^{b\text{P}\text{r}\text{o}\text{l}\text{.}2\mathrm{.}8-5,\text{T}\text{h}\text{e}\text{f}\text{o}\text{r}\text{e}\text{s}\text{c}\text{a}\text{y}(cahle)on\text{a}\text{m}\text{a}\text{i}\text{b}\text{o}\text{u}\text{t}is\text{a}\text{f}\text{t}\text{a}\text{c}\text{h}\text{e}\text{d}}$ to a tec$-$brackel on the deek of the boat by a $($removable$)$ mainless afeel pin. If the allowalile shear stress in the pin is tam $-11$ ksi $,$ and the diamefer of the pin in $d_n-23in$ what is the allowable tensite forcel. $T_{\text{t}\text{h}\text{e}\text{s}},$ in the may?