$2.$ A pipe is fixed$-$supported at point A and is subjected to the loadings shown. Calculatethe internal loadings on the cross section containing point O$.$

$3.$ Suppose that the pipe of problem $2$ is hollow, with an outer diameter of $1\mathrm{.}5$ inches and awall thickness of $0\mathrm{.}25$ inches. Determine the normal stress experienced by the pipe at allthe points on the cross$-$section containing point O$.$