Problem-6. A rectangular area is 5 m by 6 m, with the 5 m side horizontal. It is placed with its centroid 4m below a water surface and rotated about horizontal axis in the plane area and through its centroid.Find the magnitude of the force on one side and the distance between the center of pressure and the centroid of the plane when the angle with horizontal, 0 = 90°, 60°, 30°, and 0°.

Fig: 1