Question

Define newton's law of gravitation!​

Answer 1

Answer:

Answer:Newton's law of universal gravitation is usually stated as that every particle attracts every other particle in the universe 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.

Answer 2

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎Newton's Law of Gravitation

This law states that every particle of matter in this universe attracts every other particle with a force. This force is directly proportional to their masses and inversely proportional to the square of the distance between the centers of these masses. The direction of the force acts along the lines joining the masses.

Force between the masses is always attractive and it does not depend on the medium where they are placed.

Let $\sf m_1$ and $\sf m_2$ be the masses of two bodies $\sf A$ and $\sf B$ placed $\sf r$ meter apart in space

$\textsf{Force }\:\:\: \sf F \propto m_1\times m_2\\\\\sf F \propto \dfrac{1}{r^2}$

On combining the above two expressions

$\sf F \propto \dfrac{m_1 \times m_2}{r^2}\\\\\bf F = \dfrac{Gm_1m_2}{r^2}$

Where $\sf G$ is the Universal gravitational constant. It's value in SI unit is $\sf 6.674\times 10^{-11}\:N\:m^2\:kg^{-2}$