1. What is Buoyant Force?

Definition: The upward force exerted by a fluid on an immersed object, equal to the weight of the fluid displaced by the object.

Purpose: This principle explains why objects float or sink and is fundamental in fluid mechanics and naval architecture.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( F_b \) — Buoyant force (Newtons)
• \( \rho \) — Fluid density (kg/m³)
• \( V \) — Volume of displaced fluid (m³)
• \( g \) — Acceleration due to gravity (9.81 m/s²)

Explanation: The buoyant force depends on the density of the fluid, the volume of fluid displaced by the object, and gravitational acceleration.

3. Importance of Buoyant Force Calculation

Details: Understanding buoyant force is crucial for designing ships, submarines, flotation devices, and understanding natural phenomena.

4. Using the Calculator

Tips: Enter the fluid density (e.g., 1000 kg/m³ for water), displaced volume, and gravity (default 9.81 m/s²). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the relationship between buoyant force and weight?
A: An object floats when buoyant force equals its weight, and sinks when buoyant force is less than its weight.

Q2: What's a typical fluid density for water?
A: Fresh water is about 1000 kg/m³, sea water about 1025 kg/m³ at surface level.

Q3: Does shape affect buoyant force?
A: No, only the displaced volume matters (Archimedes' Principle).

Q4: How is this different from hydrostatic pressure?
A: Buoyant force is the net upward force, while hydrostatic pressure varies with depth.

Q5: Can this calculate for objects partially submerged?
A: Yes, just use the actual submerged volume in the calculation.