A 65 kg stone statue was found among the wreckage of an ancient ship and must be retrieved. The density of the stone is 2,500 kg/m^3 and the density of seawater is 1,025 kg/m^3. Question A: When the statue is out of the water how much force is needed to lift it? Please give the answer in newtons. Question B: When the statue is fully submerged how much force is needed to lift it?
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
A 65 kg stone statue was found among the wreckage of an ancient ship and must be retrieved. The density of the stone is 2,500 kg/m^3 and the density of seawater is 1,025 kg/m^3.
Question A: When the statue is out of the water how much force is needed to lift it? Please give the answer in newtons.
Question B: When the statue is fully submerged how much force is needed to lift it? Please give the answer in newtons.
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