A rectangular solid with cross-sectional area 25cm2 and height 15cm is held completely immersed, axis vertical, in kerosene of density 800kg m−3. The top face is 40cm below the free surface. Take g=9.8m s−2.
(i) Calculate the pressure difference between the bottom and top faces of the solid.
(ii) Hence find the magnitude of the buoyant force acting on the solid.