Gravitational force due to the earth is given as

Here, G is the gravitational constant whose value is

The mass of the earth is

The radius of the earth is

Let m be the mass of any object.
Suppose the object is falling on the surface of the earth, so it will experience a force of mg.
Here, g is the acceleration due to gravity.
On equating both the forces,

On substituting the values, the value of g will be
