# What is Law of Universal Gravitation in Physics

## Law of Universal Gravitation in Physics

Introduction:

Newton proposed the theory that all objects in the universe attract if each other with a force known as gravitation. The gravitational attraction exists between all bodies. Hence, two stones are not only attracted towards the earth, but also towards each other.

Statement:

Everybody in the universe attracts every other body with a force, which is directly proportional to the product of masses and inversely proportional to the square of the distance between their centers.

Mathematical Expression:

Two objects having mass ml and m2 are placed at a distance r. According to Newton’s Law of Universal Gravitation

F < m1m2 ((Here < represents the sign of proportionality do not write this in your examination)

Also F < l/r2 (Here 2 represents square of r)

Combining both the equations:

F < m1m2/r2

Removing the sign of proportionality and introducing a constant:

F = G (m1m2/r2)

My problem is no one to discuss books with. Of course, this is not a problem of paramount importance, but it is worth mentioning in this section. It is unlikely that a reader with a pristine brain, not disfigured by knowledge, will face it. She, most likely, as a rule, is inherent in literate and not ordinary individuals. 