(a) Explain the term capsizing moment. (6)

(b) An oil tanker of 17000 tonne displacement has its centre of gravity 1 m aft of midships and has 250 tonne of oil fuel in its forward deep tank 75 m from midships. This fuel is transferred to the after oil fuel bunker whose centre is 50 m from midships. (10)

200 tonne of fuel from the after bunker is now burned.

Calculate the new position of the centre of gravity:

(a) after the oil has been transferred

(b) after the oil has been used.