# Law of Universal Gravitation Calculator

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### Universal Law of Gravitation

The Universal Law of Gravitation is a fundamental principle that has shaped our understanding of the universe. Conceived by Sir Isaac Newton in the 17th century, this law posits that every particle 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 their centers. This law not only explains the motion of planets and celestial bodies but also provides insight into the forces that bind the universe together.

In essence, the Universal Law of Gravitation tells us that gravity is not just a force that keeps our feet on the ground, but a universal glue that governs the motion of cosmic entities. It’s a crucial concept in physics, especially in astrophysics and cosmology, and has numerous applications in engineering fields such as aerospace and structural engineering. Understanding this law is pivotal for engineers who design systems and structures that must withstand various gravitational forces.

# Understanding the Universal Law of Gravitation

The essence of the Universal Law of Gravitation lies in its equation:

F = G (m1 * m2) / r²

Where:

• F represents the gravitational force between two masses,
• G is the gravitational constant (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 masses.

This equation shows that the gravitational force is proportional to the product of the two masses and inversely proportional to the square of the distance between them. It’s a fundamental principle that governs the motion of celestial bodies and affects objects on a smaller scale.