Question

What will happen to the value of acceleration due to gravity(g), when you move from pole to equator?

Answer 1

Answer:

The value of acceleration due to gravity (g) is maximum at poles and decreases as we move from pole to equator and becomes minimum at the equator.

Explanation:

The expression of acceleration due to gravity on the surface of the Earth is given by

$\rm g=\dfrac{GM}{r^2}$

where,

• G = Universal Gravitational constant.
• M = Mass of the Earth.
• r = radius of the Earth.

Now, we know that the Earth is not perfectly spherical in shape. It is flattened along the poles which means the radius of the Earth is smaller at the poles as compared to that at equators.

The acceleration due to gravity (g) is inversely proportional to the square of the radius, therefore, the value of g is smaller on the equators as compared to that at the poles.

Also, its value is maximum on the poles as the radius is smallest there and it decreases as we move from pole to equator and becomes minimum at the equator.