A square plate of size 2ax 2a is constrained by a pair of hinges at A and B and a strut CD. Assume that the hinges constrain every degree of freedom except for rotation about the z-axis. The strut is attached to the plate and the base by ball-and-socket joints. The point C is in the middle of the upper edge of the plate, so that its z-coordinate is equal to - a. The point D is along the x-axis. What is the force in the strut due to hydrostatic pressure induced by the water on the right, The mass density of water is o; the plate weight is smal1.

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Slope and Deflection

The slope in a deflected beam is described as an angle in radians made by the tangent of the section with the original axis of the beam. The deflection at any point on the axis of the beam is defined as the lateral displacement of the point before and after loading.