Question

the value of g is greater at the pole than at equator

Answer 1

the Earth'sgravity is stronger at the poles thanthe equator for two reasons: The centrifugal "force" cancels out thegravity minimally, more so at theequator than at the poles. The polesare closer to the center due to theequatorial bulge, and thus have astronger gravitational field.

Answer 2

Hi there!

The Value of g is greater at the poles than at the equator.

Explanation:

→ The centrifugal force cancels out the gravity minimally, more so at the equator than at the poles.

→ The poles are closer to the center due to the equatorial bulge, and thus have a stronger gravitational field.

In other words:

→ We approximate Earth with an oblate Ellipsoid, then the surface of Earth is an equipotential surface.

(Here, this potential refers to the combined effect of gravitational and centrifugal forces. If we pour a bit of water on an equipotential surface, there would not be a preferred direction of flow.)

→ Now, because the polar radius is smaller than the equatorial radius, the density of equipotential surface at the poles must be bigger than at the equator.

Or equivalently, the field strength g at the poles must be bigger than at the equator.

(Here, field strength (known as little g, refers to the combined effect of gravitational and centrifugal forces, even if g is often referred to as the gravitational constant on the surface of the Earth.)

Hope it helps

;)

Comment if you need to clear anything