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MotionLab
Why ships float and submarines sink — the upward push of displaced fluid.
The buoyant force equals the weight of the fluid displaced by the object — this is Archimedes' principle, and it explains why a steel ship floats (it displaces a huge volume of water) while a steel ball sinks (it displaces very little relative to its weight).
If the buoyant force equals the object's weight, it hovers (neutral buoyancy) — submarines adjust this by filling or emptying ballast tanks, and scuba divers fine-tune it with a buoyancy compensator vest.
Buoyant force (N)
490.5
F = ρVg
What you entered
F = ρ × V × g
1000 × 0.05 × 9.81= 490.5 NResult
Buoyant force (N): 490.5
An object displacing 0.05 m³ of fluid (ρ = 1000 kg/m³) experiences a buoyant force of 490.5 N.