Problem $2$: The solid circular shaft shown below has a radius $r=0\mathrm{.}238$ in and is subjected to $P=1423\mathrm{.}6lbf$ and

$T=105\mathrm{.}9$

lbf$.$in$.$ Using Mohr's circle:

Determine the principal stresses and the maximum shear stress at the point shown in the figure.

Determine the normal and shear stresses on the inclined plane $a-b$ shown in the figure. Show the results on

a sketch of the plane on which these stresses act.

Use an online free tool for drawing the Mohr's circle and compare it with your results.