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Q4. Just before entering drydock a ship of 5000 tonnes mass floats at draughts of 2.7 m forward and 4.2 m aft. The length between perpendiculars is 150 m and the water has a density of 1025 Kg/m3. Assuming the blocks are horizontal and the hydrostatic data given are constant over the variation in draught involved, find the force on the heel of the sternframe, which is at the after-perpendicular, when the ship is just about to settle on the dock blocks, and the metacentric height at that instant.

Hydrostatic data: KG = 8.5 m, KM = 9.3 m, MCT1 m = 105 MNm. longitudinal Centre of flotation(LCF) = 2.7 m aft of amidships.