When do I use F = G m₁m₂/r² in Gravitation, and what does it mean?
the gravitational force between two masses.
F = G m₁m₂/r² — the gravitational force between two masses. Use it when: point masses (or spheres) separated by r. Always check the condition holds before plugging in numbers.
Key point
F = G m₁m₂/r²
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