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2006-08-27 20:06:01 · 9 answers · asked by Ashwin Ram 1 in Science & Mathematics ➔ Earth Sciences & Geology
According to Einstein, the Earth is following its natural motion. As the massive sun distorts time-space around itself, Earth is slowly (billions of years, so far) coming closer to the sun. Think of a roulette ball before it entera a slot and the wheel stops spinning. Newton said the gravitational force was responsible, along with centripital (not centrifugal) motion, although the graviton has never been demostrated to exist.
2006-08-28 10:15:46 · answer #1 · answered by Amphibolite 7 · 0⤊ 0⤋
The Earth has been rotating the same direction ever since it formed. Since it was formed from swirling matter, it just kept moving in the same kind of spinning motion. As for the direction, there is no real reason the Earth has to be spinning the wa y it is. Several planets spin the other direction (relative to their orbital motion). If Earth were spinning the other way, we would just have sunrise in the West and sunset in the East.
The rotational speed of the Earth depends on where you are. At the equator, the speed is about 1670 km/hr, or 1070 mi/hr. To find the rotational speed where you live, take the cosine of your latitude, and multiply it by the speed at the equator. For example, the speed at a latitude of 60 degrees, the speed would be cos(60)x1670=835km/hr.
2006-08-28 03:17:21 · answer #2 · answered by Anonymous · 1⤊ 0⤋
it does not need any force to rotate and revolve. It moves because of inertia of motion impated some millions of years ago. However the force that binds earth in the solar system is universal gravitational force.
2006-08-28 03:11:35 · answer #3 · answered by Anonymous · 1⤊ 0⤋
Steam. There is a big boiler in the center of the Earth. Most scientists try to deny this though.
2006-08-28 03:47:05 · answer #4 · answered by Scott B 3 · 0⤊ 0⤋
Centripetal force, which is the force needed to move an object in a circle at constant speed.
2006-08-28 03:13:02 · answer #5 · answered by Anonymous · 0⤊ 0⤋
earth rotate in it's axis due to it's own gravitational pull where as it revolve due to the gravitational pull of sun
2006-08-28 03:21:59 · answer #6 · answered by cks 1 · 0⤊ 0⤋
Inertia.
2006-08-28 04:38:43 · answer #7 · answered by Mr. Logic 3 · 1⤊ 0⤋
Good Question....
How do you know if there is wind?
Beliving in something which is not there but has an effect....
the force of God....
2006-08-28 03:12:36 · answer #8 · answered by DonnyD 3 · 0⤊ 1⤋
by centrifugal force
regards
govind
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new delhi
2006-08-28 03:14:03 · answer #9 · answered by govind 1 · 0⤊ 1⤋