Problem 5.85: A 2 3-m gate is hinged at A and is held in position by

Question:

Problem 5.85: A 2 × 3-m gate is hinged at A and is held in position by rod CD. End D rests against a spring whose constant is 12kN/m. The spring is undeformed 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.

Problem 5.86: Solve Problem 5.85 if the mass of the gate is 500 kg.

1.5 m