Question

why the gravitational acceleration is different at different places of the earth.explain​

Answer 1

Answer:

The variation in apparent gravitational acceleration (g) at different locations on Earth is caused by two things (as you implied). First, the Earth is not a perfect sphere—it's slightly flattened at the poles and bulges out near the equator, so points near the equator are farther from the center of mass. The distance between the centers of mass of two objects affects the gravitational force between them, so the force of gravity on an object is smaller at the equator compared to the poles. This effect alone causes the gravitational acceleration to be about 0.18% less at the equator than at the poles.

Second, the rotation of the Earth causes an apparent centrifugal force which points away from the axis of rotation, and this force can reduce the apparent gravitational force (although it doesn't actually affect the attraction between two masses). The centrifugal force points directly opposite the gravitational force at the equator, and is zero at the poles. Together, the centrifugal effect and the center of mass distance reduce g by about 0.53% at the equator compared to the poles.

Explanation:

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