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2 cards from this section. Quick, good the night before a test.
Define buoyant force.
Think about what happens when an object is placed in water.
What is the center of pressure?
Consider how pressure increases with depth.
What is the buoyant force?
Think about how fluids react to submerged objects.
True or False: The center of pressure is always at the centroid.
Recall our discussions about pressure gradients.
An object with a volume of 3 m³ is submerged in water. Calculate the buoyant force acting on it, assuming the specific weight of water is 9.81 kN/m³.
Use the specific weight of the fluid and the volume of the submerged object.
A wedge-shaped object is submerged in mercury with a specific weight of 13.6 kN/m³. Its base measures 0.5 m², and the centroid is submerged 0.8 m deep. What is the resultant buoyant force?
Calculate with the specific weight of mercury for accurate results.
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