Question

State Newton's universal law of gravitation. Why is it called universal?

Answer 1

Newton's universal law of Gravitation

1. The law states that every particle in the universe attracts every other particle with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
2. Mathematically it is represented as

$F=\frac{G{m}_1{m}_2}{R^2}$

F⇢ force due to gravity

$G$⇢ universal gravitational constant $\left(G=6.67\times {10}^{-11}\frac{N{m}^2}{k{g}^2}\right)$

$m_1$⇢ mass of body 1

$m_2$⇢ mass of body 2

Universal Law:

The above law is also known as universal law because it is applicable for all masses (like sun, moon, earth or a car) at all distances, independent of the medium in which they are present.