How to solve

$1$

$2$ points

The below L$-$shaped bar has a solid circular cross section with radius $R=0\mathrm{.}75in,L=16in,$ and $H=6in.$ A force acts in the positive z $-$direction with magnitude $F=990lbf.$

Draw two stress elements, one for point A and one for point $B,$ that show the shear stresses due to torsion at point A and point $B.$ Also report the shear stresses at both point $A$

and point B$.$ Be sure to include subscripts denoting the direction of the shear stresses in your answer, and include the sign of the shear stresses $($i$.$e$.$ whether the shear stresses

are positive or negative$).$

In the box below, report your answer for the value of the shear stress at point.A in units of ksi, and include one decimal place.

Do a FBD and find Moment and thats how you find torque! HINT