Every particle in the Universe attracts every other particle with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
In mathematical terms:
F = G * (m1 * m2) / r²
Where:
* F is the force of gravity
* G is the gravitational constant (approximately 6.674 × 10⁻¹¹ N⋅m²/kg²)
* m1 and m2 are the masses of the two objects
* r is the distance between the centers of the two objects
Key points about Newton's Law of Universal Gravitation:
* It's universal: It applies to all objects, regardless of their size or composition.
* It's an attractive force: Objects with mass pull on each other, never pushing away.
* It's inversely proportional to the square of the distance: The farther apart objects are, the weaker the gravitational force between them.
* It's proportional to the product of the masses: The more massive the objects, the stronger the gravitational force between them.
Important Note: While Newton's Law of Universal Gravitation is a remarkably accurate description of gravity for many everyday situations, it does not fully explain gravity at very high speeds or strong gravitational fields. For these scenarios, Einstein's theory of General Relativity provides a more comprehensive understanding.
