Here's how it's calculated:
Newton's Law of Universal Gravitation:
* 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 is the mass of the first object
* m2 is the mass of the second object
* r is the distance between the centers of the two objects
Explanation:
* Gravitational constant (G): This constant is a fundamental value that represents the strength of the gravitational force. It's the same throughout the universe.
* Mass (m1, m2): The more massive the objects are, the stronger the gravitational force between them.
* Distance (r): The farther apart the objects are, the weaker the gravitational force. The force decreases rapidly with distance (inverse square law).
Key Points:
* Attraction: Gravity is always an attractive force, pulling objects towards each other.
* Universal: Gravity acts between all objects with mass.
* Weakest force: While powerful on a large scale, gravity is the weakest of the four fundamental forces of nature.
* Center of Mass: The force is directed towards the center of mass of each object, not necessarily their geometric centers.
Let me know if you'd like a specific example of calculating gravitational force between two objects.