Question: The post has a square cross - sectional area. The post is fixed at its base and a horizontal force is applied at its end

The post has a square cross-sectional area. The post is fixed at its base and a horizontal force is applied at its end as shown in (Figure 1). Suppose that \( P=32\mathrm{lb}\).
Figure
Part A
Determine the maximum in-plane shear stress developed at \( A \).
Express your answer in pounds per squared inch to three significant figures.
Part B
Determine the principal stresses at \( A \).
Express your answers in pounds per squared inch to three significant figures separated by a comma.
The post has a square cross - sectional area. The

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