Computation for the magnitude, Mechanical Engineering

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A horizontal line ABCD measuring 9m is acted upon by forces of magnitude 400, 600, 400 and 200 N at points A, B, C, D respectively with downward direction. These point are so located that AB= BC + CD = 3m.The lines of actions of the these forces are inclined at 90^o, 60^o, 45^o, 30^o respectively with AB, make computation for the magnitude, position and direction of the resultant.

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