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Free body diagram of a structure

Structure for FBD
Structure for FBD
in the structure to the right, there are several objects 2 support poles (pink), a beam (blue), 2 crates (brown). The crates can be assumed to have an evenly distributed density. The hanging crate is supported by wires.

Draw a free body diagram (FBD) of the beam

Dimensions on the diagram and magnitudes of forces are not important.
assume that gravity exists but the mass of the beam is negligible.
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