Question: How to solve The below L - shaped bar has a solid circular cross section with radius R = 0 . 7 5 i n

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The below L-shaped bar has a solid circular cross section with radius R=0.75in,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 boxbelow, report your answer for the value of the shear stress at point A in units of ksi, and include one decimal place.
SHOW WORK AND FREE BODY DIAGRAM PLEASE!
How to solve The below L - shaped bar has a solid

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