The rectangular shaft in Fig. 1 is fixed at the wall.(a) Cut the shaft at a point 2 in. fr...

The rectangular shaft in Fig. 1 is fixed at the wall.

(a) Cut the shaft at a point 2 in. from the wall, remove the portion to the right, and show all forces and moments on the end surface of the part that remains.

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(b) Find the stresses from all causes on an element at A at the center of the top surface of the shaft at the cut. Take sides of the element parallel to the coordinate axes.

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(c) Repeat part (b) for an element at B at the center of the vertical side of the cut on the near side.

Figure 1