Solve Problem 5.90 if the gate weighs 1000 lb.

PROBLEM 5.90 A 4 00d7x 2-ft gate is hinged at A and is held in position by rod CD. End D rests against a spring whose constant is 828 lb/ft. The spring is un deformed when the gate is vertical. Assuming that the force exerted by rod CD on the gate remains horizontal, determine the minimum depth of water d for which the bottom B of the gate will move to the end of the cylindrical portion of the floor.

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3 ft 4ft 3f 2 ft