MathLiveArchimedes' principle
The buoyant force on a body submerged in a fluid equals the weight of the fluid it displaces. It is used to calculate whether objects float or sink and the upward force a fluid exerts on them.
F_b = \rho_f V gWhat the symbols mean
| buoyant force (N) | |
| density of the fluid (kg/m^3) | |
| volume of fluid displaced, equal to the submerged volume of the body (m^3) | |
| gravitational acceleration (m/s^2) |
About this formula
- FieldPhysics
- TopicFluid mechanics
- LevelHigh school
- Also calledbuoyant force, buoyancy formula, upthrust, weight of displaced fluid, floating force, Archimedes buoyancy
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