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Q9. A watertight door in a bulkhead is 1.2 m high and 0.75 m wide, with a 0.6 m sill.

The bulkhead is flooded with sea water to a depth of 3 m on one side and 1.5 m on the other side.

(a) Draw the load diagram for the door. (8)

(b) From the load diagram drawn in Q9(a) determine:

(i) The resultant load. (3)

(ii) The position of the centre of pressure on the door. (5)