A uniform 200-N board of length L has two weights hanging from it, 300 N at L/3 from one end and 400 N at 3L/4 from the same end (see the figure below). What single additional force acting on the board will produce equilibrium?
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A uniform 200-N board of length L has two weights hanging from it, 300 N at L/3 from one end and 400 N at 3L/4 from the same end (see the figure below). What single additional force acting on the board will produce equilibrium?
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