A rectangular pontoon that is 8 m long, 6 m wide and 2 m deep weighs 500 kN and it floats in water having a specific weight of 10 kN/m3. The pontoon carries on its upper deck a boiler of diameter 5 m...

A rectangular pontoon that is 8 m long, 6 m wide and 2 m deep weighs 500 kN and it floats in water having a specific weight of 10 kN/m3. The pontoon carries on its upper deck a boiler of diameter 5 m and weight 200 kN. The centre of gravity of each unit coincides with the geometrical centre of the arrangement and it lies in the same vertical line. Determine the metacentric height.