Question: The triangular plate ABC is supported by ball-and-socket joints at B and D and is held in the position shown by cables AE and CF.

The triangular plate ABC is supported by ball-and-socket joints at B and D and is held in the position shown by cables AE and CF. If the force exerted by cable AE at A is 55 N, determine the moment of that force about the line joining Points D and B.

0.4 m 0.2 m 0.9m 0.7 m 0.6 m 0.6 m 0.35 m 0.9 m 0.6 m 0.4 m 0.3 m

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