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Q2) For a ship of 5000 tonne displacement floating in water having a density of 1025kg/m³ , the KG is 5.19 m.

A centre double bottom tank 12.2 m in length, 6.1 m wide and 1.6 m deep is now half filled with oil of density 900 kg/m³.

A mass of 100 tonne is lifted from a quayside by means of the ship’s lifting gear.

The top of the derrick is 18 m above the keel.

The KM in the final condition is 7.5 m.

Calculate EACH of the following:

(a) the final effective metacentric height; (13)

(b) the maximum outreach of the derrick, if the angle of heel is not to exceed 5^o . (3)