A crane lifts the 24500 kg steel hull of a ship out of the waterDetermine the following.(a) the tension in the crane's cable when the hull is submerged in the water N(b) the tension when the hull is completely out of the waterN
Giving steel a density of 7,700kg/m^3.: Volume of steel in ship's hull (24,500/7,700) 3.182m^3So sunken, it displaces 3.182m^3 of water, the mass of which is (1,000 x 3.183) 3,182kgThe buoyancy on the sunken ship is from this mass of water(24,500 - 3,182) 21,318kgapparent massa) (21,318 x 9.8) 208,916.4Ntension in cableb) When out of the water, the tension will be (24,500 x 9.8) 240,100N.
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