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Gravitational Force Calculator - Newton's Law
Free gravitational force calculator. Calculate the force between two masses using Newton's law of universal gravitation.
Gravitational Force Calculator
Calculate force between masses
Gravitational Force
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Gravitational Force Calculator
Calculate the gravitational attraction between any two masses using Newton's law of universal gravitation.
Newton's Law of Gravitation
F = G × (m₁ × m₂) / r²
G = 6.674×10⁻¹¹ N⋅m²/kg² (gravitational constant). Force decreases with square of distance.
Frequently Asked Questions
Why don't we feel attraction to nearby objects?
The gravitational constant G is tiny. You'd need planetary masses to feel significant force. Earth's mass creates ~9.8 m/s² acceleration.
What is g = 9.8 m/s²?
It's Earth's surface gravity. F = G×M×m/r² = m×g, so g = G×M/r² = 9.8 m/s² at Earth's surface.
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