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Q1. A ship of length 120 m displaces 11750 tonne when floating in sea water of density 1025 kg/m³. The centre of gravity is 2.5 m above the centre of buoyancy and the waterplane is defined by the following equidistant half-breadths given in Table Q1:

Calculate EACH of the following:

(a) the area of the waterplane; (3)

(b) the position of the centroid of the waterplane from midships; (3)

(c) the second moment of area of the waterplane about a transverse axis through the centroid; (5)
(d) the moment to change trim one centimetre (MCT 1 cm), (5)