Question

Give a mathematical expression for the gravitational force.

Answer 1

1. According to the universal law of gravitation, every object in the universe attracts other objects with a force (F), whose magnitude is directly proportional to the product of their masses (say m₁ and m₂) and inversely proportional to the square of the distance (R) between them.
2. Therefore, we can write $F=\frac{G{m}_1{m}_2}{{\left(R\right)}^2}$, where G is called the universal gravitational constant.
3. The value of G is 6.67 x 10^-11 Nm² kg^-2.