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4 cards from this section. Quick, good the night before a test.
What formula do we use to calculate the pressure at a depth in a fluid?
Remember that pressure increases with depth.
Define buoyant force.
Think about how submerged objects behave in water.
What is the formula to calculate hydrostatic pressure as a function of depth?
Think about how pressure changes as you go deeper underwater.
Is the resultant force always directed vertically upwards?
Consider how pressure acts at a point.
A trapezoidal plate is submerged at an angle in water. The top base is 1m long, the bottom base is 2m long with a height of 1m. Calculate the total resultant force acting on one face if the water depth is 3 meters.
Break down into differential elements and integrate the pressure.
A submerged object has its centroid located 2 meters below the water surface. If it displaces 1500 kg of water, calculate the buoyant force acting on the object.
Remember that density of water is 1000 kg/m³.
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