gravity ain't same all over da earth.Its stronger at da poles than along da equator .y is this so ?

Question

plz i ant detailed answers but not tooo long

Answer 1

Gravity is approximately the same strength everywhere, but because the Earth is rotating centrifugal force at the equator is always counteracting gravity and trying to throw things off into space. For this reason you would weigh about 0.3% less at the equator than at the pole where there is no centrifugal force. If the Earth rotated faster, so that a day was only 90 minutes long, then things at the equator would be weightless. And if the Earth rotated even faster than that, things would actually be thrown off the planet at the equator and Earth would fly apart.

Answer 2

Gravity varies around the earth from many factors.

The earth is not cirular, it is slightly oval. This creates a different magnetic field on the poles and the equator,

The density of the earth under a point also effects the gravity in that place. So if there is denser rock, or a underground lake, the gravity will differ.

Gravity also varies according to the altitude. The force of gravity in high places is slightly lower than the force of gravity in a lower valley or the bottom of the sea etc.

Answer 3

Its not stronger at the poles. This is a common myth of ignorance.

The earth is very spherical, and local gravity depends far more on the make up of underlying rocks. In fact it is lowest in India (not at the equator). The strongest is in the south pacific - nowhere near the poles.

See the map below:

Answer 4

Well buddy the shape of earth is not a perfect sphere, and the gravitational field is proportional to the body's mass and varies inversely with the square of distance from the body hence compare the distance of equator to the earths core and that of poles with core of earth and you will get your answer.
For more info try these links

http://en.wikipedia.org/wiki/Gravitation
http://en.wikipedia.org/wiki/Earth%27s_gravity

Answer 5

The Earth is not a perfect sphere so at some places on earth you are closer to the center then others.

Answer 6

Gravity should be the least of your worries. You should be studying English. I suppose you'll need to know where the garbage cans won't be as heavy, so your job won't be as hard.

Answer 7

The radius of the earth is a bit shorter at the polse so gravity is just a bit stronger... Please repeat 1st grade and learn to spell.

Answer 8

Imagining THAT you can imagine the unimaginable is not the same as ACTUALLY imagining what cannot be imagined. The former is called DELUSION the latter, CONTRADICTION and false in every possible world.

Answer 9

Man listen that gangster talk