The dimensions of the galvanising vat are given in the diagram below. The vat tank is 1m deep. The surface of the molten zinc is 175mm below the rim of the tank. An irregular mild steel fabrication weighing 49KN is to be galvanised by immersing it completely in the molten zinc. a. Work out how close the top level of the zinc in the vat will be when the fabrication is completely immersed. I 1.4m 4 m DE Take the density of mild steel to be 7850 kg/m b. A cylinder, 400mm long and 30mm diameter, of an unknown alloy is suspended in the galvanising bath. It does not completely sink, it floats when 350mm is submerged. Using Archimedes Principal calculate the density of the unknown alloy. Take the density of molten Zinc to be 6600 kg/m. C. The original fabrication, weighing 49kN is lowered into the galvanising vat. The crane exerts an upwards force of 44,000 Newtons, and friction in the crane pulleys exerts 3kN. Draw a free body diagram, calculate the Force of Inertia and hence the acceleration of the fabrication as it enters the vat.