In each explain how to find the resultant internal loading acting on the cross section at-...

In each explain how to find the resultant internal loading acting on the cross section at- point A. Draw all necessary tree-body diagrams, and indicate the relevant equations of equilibrium. Do not calculate values. The lettered dimensions, angles, and loads are assumed to be known.

(a)

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(b)

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(c)

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(d)

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(e)

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(f)