Question

HOW IS MAXIMUM VALUE OF GRAVITATIONAL ACCELERATION NOT AT THE CENTER? I heard it a couple of times now , can anyone Best of Best pls care to explain. Because what I found theoretically was that as soon as R ( radius of Earth) = 0 then gravitational force will be Unlimited

Answer 1

Answer:

Originally Answered: At what distance does Earth's gravity end? At 6378 kilometers or so, the force drops to 1/4 to what it is on the surface but it is not zero. It is not zero even at 400,000 kilometers from the Earth - which is why the Moon is orbiting the Earth.

Explanation:

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Answer 2

Answer: gravitational acceleration is maximum at poles.

Explanation:

Expression for  acceleration due to gravity is given by g=  GM/R^2

 

as we know radius of earth at poles is minimum, so acceleration due to gravity will be maximum at poles because g is inversely proportional to R^2.

Also net acceleration due to gravity is affected by centrifugal force due to rotation of earth.

So, gravitational acceleration is maximum at poles.