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The reason why people don't fall to the gorund is because of the gravity force or is it because of the speed at which our planet spins around? Or. is there any other reason?

2006-08-02 15:27:44 · 14 answers · asked by Anonymous in Science & Mathematics Physics

14 answers

Faster than slow, but slower than fast.

2006-08-02 15:31:20 · answer #1 · answered by Anonymous · 1 0

People do fall to the ground because of gravity. I think the spinning of the earth(rotation) and its revolution are also due to gravity. Gravity is an attracting force. It is the force that holds everything together. it makes the particles of which the stars and planets are made coalesce to form the heavenly bodies, and it governs the forms of solar systems and galaxies.
Everything with mass is drawn to everything else with mass. but they don't just shoot straight at each other, because there are all sorts of other objects with gravity acting on them. They move until they reach a place of relative stability, where the forces are equalised, and the revolutions and rotations form part of that relatively stable state.
There are variations in the speeds with which the earth spins or travels. We don't notice them though. Some are affected by the movements of the other planets, or even by the weather on earth. Are you confusing gravity with centripetal force or centrifugal force? These are to do with spinning, not gravity.
Centripetal force is the force required to make an object revolve, the centrifugal force is the reaction to the centripetal force. Neither have anything to do with gravity.

2006-08-04 02:56:33 · answer #2 · answered by hi_patia 4 · 0 0

the earth is approximately 25,000 miles around the equator and turns a full revolution in 24 hours. using this simple math the earth spins approximately 1042 mph. as far as gravity goes i would have to research exactly what causes gravity. I would guess this speed is enough to secure gravity on our planet.

2006-08-02 15:39:14 · answer #3 · answered by dr. ruth 2 · 0 0

Gravity pulls things to the center. Spinning on the axis produces day and night. It takes 24 hours for each rotation.

2006-08-02 15:33:51 · answer #4 · answered by nursesr4evr 7 · 0 0

It is about 24,000 miles round the planet at the equator - so, if you stand there, you get back to the same point relative to the sun in 24 hours (speed 1,000 miles per hour)
If you stand on the pole the distance round the Earth is zero miles so you have zero speed. You will turn in a circle on the spot, however.

2006-08-03 04:09:30 · answer #5 · answered by lykovetos 5 · 0 0

thw world spins at thousands of miles an hour, creating a gravitational pull that keeps us, and everything else for that matter, on the ground.

But because earth is so big, even at that speed it only completes one revolution every 24 hours. Hence why a day is 24 hours long

2006-08-02 21:32:58 · answer #6 · answered by beanie 3 · 0 0

The Earth spinds extremilly fast on its axis, more than 1000,000,000 mph like you said the Gravity kepps us on the Earth and the sun stops us spinning of into the universe.

2006-08-03 09:10:44 · answer #7 · answered by Gareth 2 · 0 0

People already on the ground don't fall down because their skeleton and muscles keep them standing up. People in the air fall to the ground because of gravity. The rotation of the earth has nothing to do with it.

2006-08-02 15:32:52 · answer #8 · answered by Anonymous · 0 0

it makes one revolution every 24 hours right. so if you stand at one pole you will go in a full circle like a merry-go-round one time each day! if you are at the equator you will be moving many hundreds of mph relative to a fixed position in space.

2006-08-02 15:34:52 · answer #9 · answered by justnotright 4 · 0 0

A thousand miles per hour.

2006-08-02 15:33:55 · answer #10 · answered by ricardocoav 4 · 0 0

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