What is the universal law of gravitation?
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The universal law of gravitation, formulated by Sir Isaac Newton, describes the force of gravity between two objects. It states that every particle of matter in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
Mathematically, the universal law of gravitation can be represented as:
F = (G * m₁ * m₂) / r²
Where:
- F is the force of gravity between the two objects
- G is the gravitational constant (approximately 6.67430 × 10^-11 m³⋅kg⁻¹⋅s⁻²)
- m₁ and m₂ are the masses of the two objects
- r is the distance between the centers of the two objects
To calculate the force of gravity between two objects using this formula, you need to know the masses of the objects and their distance from each other. You can substitute these values into the equation to find the force.