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Free buoyancy force calculator for fluid mechanics and physics problems. Estimate buoyant force, net vertical force, and floating behavior from density and displacement values.
Last updated: April 20, 2026
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Buoyant force
196.200 N
Net force (up +)
49.050 N
Weight of displaced fluid
196.200 N
Predicted behavior
Rises / Floats
Interpretation
Buoyant force is 196.200 N and net vertical force is 49.050 N (Rises / Floats).
Physics note:
Buoyant force equals the weight of displaced fluid, independent of object material.
Formula
Fᵦ = ρVg
Condition
Fᵦ ? mg
Output
Fnet = Fᵦ - mg
ρ = 1000 kg/m³, V = 0.02 m³, g = 9.81 m/s², mass = 15 kg
Buoyant force
196.20 N
Net force
49.05 N
The calculator applies Archimedes principle. Buoyant force equals the weight of displaced fluid. Comparing that upward force with object weight determines whether the object rises, sinks, or stays neutrally buoyant.
Fᵦ = ρVgWeight = mgFnet = Fᵦ - mgPositive net force indicates upward acceleration; negative net force indicates sinking tendency.
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