Question

explain why the value of g is zero at the centre of earth

Answer 1

at the center of the earth, you would feel weightlessness, because the mass surrounding you would be pulling on you equally in all directions.

EDIT: Actually, you would also still be feeling the gravity from the sun.

However, you would also be feeling 362 GigaPascals (362,000,000,000 Pascals= 3,572,662 atmospheres) of pressure, due to the weight of everything crushing in on top of you.

> Imagine the earth is perfectly round except for one very massive mountain, if I stand on the opposite side of the world from the mountain, do i feel heavier, and if I stand right next to the mountain, do I feel lighter?

Ok, this is a little different. The simple answer is: Not that you would notice.

If you compare the radius of the earth to the distance from the bottom of Challenger Deep (Deepest spot) to the summit of Everest, you come up with a ratio of 322:1 (The radius of earth is 321 times greater than the distance from deepest to highest.)

Answer 2

hey mate here is your short and understandable answer...


At the centre the distance is zero, hence gravity is zero. The value of 'g' is 9.8.'g' is acceleration due to gravity.At the centre of the earth it will turn zerobecause there will be no acceleration at the centre of the earth.


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