question solve

A tank containing oil (specific gravity = 1.6) has a circular - gate in its inclined wall as shown in the Figure 1 . The gate has a radiu s of 4 m and hinged at a location, O. Neglecting atm ospheric pressure determine (i ) the magnitude and location of the resulting force exerte d on the gate by the oil, and (ii ) the forces (Fx and Fy) that act on the stopper clock. (b) The circular - gate is now replaced by a square - gate. The centre of gravity of the square gate remains at same location . What size of square - gate is required for same force acting on the stopper block ? Verify whether there is any change in moment at location ‘O’ (see figure 1) due t o the square - gate?