Write the formula to find the magnitude of the gravitational force between the earth and an object on the surface of the earth.

The formula to find the magnitude of the gravitational force between the earth and an object on the surface of the earth is

\( F \ = \ G \frac{Mm}{d^2} \)

where, 'F' is the gravitational force between two objects,

'G' is the proportionality constant

'M' and 'm' are mass of objects

'd' is the distance between the two objects