Question

State the inverse square law of force in gravitation.

Answer 1

1. Newton's law of gravitation is also known as the inverse square law.
2. It states that every particle of matter in the universe attracts every other particle with a force that varies directly as the product of the masses of two particles and inversely as the square of the distance between them.

$$\begin{gathered} Gravitationalforce, \\ {M}_1\to Massof{1}^{st}body \\ {M}_2\to Massof{2}^{nd}body \\ R\to Dis\tan cebetweenboththebodies \\ F\alpha \frac{M_1\times M_2}{R^2} \\ or \\ F=G\times \frac{M_1\times M_2}{R^2} \\ where, \\ G\to Universalgravitationalcons\tan t \end{gathered}$$

3. The value of G is $6.67\times {10}^{-11}N{m}^{2}k{g}^{-2}$.