Let’s consider an object that is submerged in water and hanging from a string. Draw free-body diagrams for the object hanging from the string when it is outside the water and submerged in water 1. From the free-body diagrams you have drawn, how would you calculate the buoyant force of the metal when it is water from the tension in the string in the two situations above? 2. State below how you would do this.
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.
Let’s consider an object that is submerged in water and hanging from a string. Draw free-body diagrams for the object hanging from the string when it is outside the water and submerged in water 1. From the free-body diagrams you have drawn, how would you calculate the buoyant force of the metal when it is water from the tension in the string in the two situations above? 2. State below how you would do this.
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