help me sketch thisThe shaft $($diameter$,$ d$)$ below is rotating while the force and torque are stationary and

constant. For surface point P$,$ marked below, at the A$-$ location and in terms of rotation angle

counting $($or time$)$ from the current position, please

a$)$ Sketch the variation of the bending stress $($normal$),{}_b$;

b$)$ Sketch the variation of the torsional shear stress, ${}_{ts}$;

c$)$ Sketch the variation of the $F-$induced transverse shear stress, ${}_v.$

For all, label the peak values in terms of L$,$ d$,$ F$,$ T$.$ You may start from our usual points of

$1,2,3,4$ at A $,$ and figure out the variation of each of ${}_b,{}_{ts},$ and ${}_v$ in one cycle of rotation.

"cut" at A$-$ and see the remaining cross se

Note that for the variation of the transverse shear stress, you may want to follow the motion of

one edge of a shear stress element, e$.$g$.$ MN$.$