1) part A of the question asked for the pressure of the tanker in water giving that the height as 18 and density as 1.05 x 10^3 and gravity in 10m/s^2 and the weight which is 135 x 10^7 N
2) Part B of the question is saying that the tanker is settled on keel blocks which has an area of 1000m^2. and the unloaded weight of it is 60 x 10^7 N. And they want us to calculate the pressure exerted on each of the keel blocks.
3) Part C of the question is showing that the tanker is placed on the keel of height 2 metres and then the other picture is showing that sea water is immersed till a final depth of 20 m.
so the question is saying to sketch on the graph how the pressure on each of the keels block changes as the depth of water increases
4) Part D: the tanker's engine is 45000 kW and its travelling at a constant speed of 7m/s . So they want us to calculate the magnitude of the forces resisting the tanker's motion.
