Problem $8$

A $3-$in$.$ standard steel pipe $(D=3\mathrm{.}500$ in$.$; $d=3\mathrm{.}068$ in$.)$ supports a concentrated load $P=900lb,$ as shown in the figure below. The maximum shear on the pipe, $V_{\text{m}\text{a}\text{x}}=900lb$ and the maximum moment $M_{\text{m}\text{a}\text{x}}=32,400lb.$in$.$ Determine the magnitude of:

A$.$ The maximum shear stress in the pipe.

B$.$ The maximum tensile bending stress in the pipe.

Note: Please use the formulae provided in your lecture notes to compute I and $Q$ of the steel hollow circular section of the pipe.