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HELP!! Physics question on bouancy force!?

A crane lifts the 1.6×104- steel hull of a sunken ship out of the water.Determine the tension in the crane's cable when the hull is fully submerged in the water(That's all the information they gave for the problem)


While gravity pulls the ship down, buoyant force pushes it upRemember the sum of the forces: Fnet Tension(up) + Buoyant force(up) - mg(down) 0 So rearranging: Tension mg - Buoyant force Buoyant force weight of the water displaced Don't know what volumes to use? Remember you can get volume by: Density mass/volume so mass/Density volume Volume of the steel ship underwater is the volume of water displacedBut you knew this already didn't you?

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