By virtue of which force earth is rotating on it's own axis??

Answer 1

Conservation of angular momentum.

http://en.wikipedia.org/wiki/Conservation_of_angular_momentum

Answer 2

By virtue of the momentum conserved in its on inertia to maintain rotating on its own axis that is tilted 23.5 degrees from the line that is drawn from the North Pole to the South Pole. That tilt is the reason for having the four seasons. Were there no tilt, the weather on earth will be the same all year around.

I don't know if I answered your question. You haven't made any details what exactly you want to know. According to what you asked your question is answered. However, your question placed a serious question in my own mind, namely, where did that force come from. According to the first law of what’s his name, yes, Newton, every thing that is in motion keeps in motion unless some other force interact on the object to either stop it from moving or change the course of its movement and the direction, in accordance with the resultant of the two forces. I think the answer to that question goes back to the time when the Earth was forming, and as the Earth was condensing, and due to the forces of gravity coming from its own mass and nearby objects like the Son, Planets and other object. The results of these forces were as we understand them now are three: 1 - the force or the momentum that makes the earth to revolve around the Son. 2- The momentum that makes the earth to rotate on its own tilted axis. 3- The force that makes the earth wobbles and thus changes the polar stars once in approximately 26000 years.

I don't know of any extra forces applied on the Earth other than those mentioned herein.

Answer 3

Inertia. The original mass of the earth had some spin to it; as it cooled and contracted, the spin increased (due to conservation of angular momentum, as someone else has pointed out.) But we do not know where the initial spin came from. The Moon has not had enough mass or long enough time to stop the Earth's rotation. Presumably, at some point in the future, the Moon and Earth will become tidally locked to each other. Right now, the Moon does not rotate with respect to Earth. Someday, perhaps the Earth will slow down and stop rotating with respect to the Moon, and we will have stability. Our common center of gravity will continue to orbit the Sun. It is the sloshing back and forth of the oceans which allows this loss of rotational energy to happen, of course. If only there was some way we could stop that!

Answer 4

Earth is spinning today because the original nebula that formed the solar system was spinning - that can all be explained by the conservation of angular momentum.

No force is needed to keep Earth rotating. Just to be clear, inertia is not a force (no one above said it was, either, but I just wanted to nit pick). Even though the tidal force from the Moon is causing our rotation to slow down, the effect is very very small.

Answer 5

centripetal force is defined as the radial force directed towards the centre acting on a body in circular motion. the direction of the centripetal force, changes continuously so that it always radial.the orbit of the moon around the earth and the orbit of the earth around the sun , are nearly circular.the centripetal force in these cases is supplied by gravitational force. so, according to me the earth is rotating on it's own axis by the virtue of gravitational force.

Answer 6

Folks are correct to mention conservation of angular momentum, but I think the best answer to this question is "gravity." Gravity pulled the material that forms the Earth into a spherical shape. This material was already in motion, as others have pointed out. As gravity pulled this material in, the speed of rotation accelerated, just as a spinning ice skater speeds up when he pulls in his arms. This IS due to conservation of angular momentum - but that is a law of conservation, not a force. This force bringing this about is gravity.

Answer 7

the centrifugal force.
As the centripetal force of the earth acts in the centre of the earth
and due to the orbital velocity given to it milleniums back it still follows the path of the orbit . In order to balance such a force the centrifugal force acts to balance the centripetal force and causes the earth to move around its axis.

Answer 8

Trick question? No force is required to maintain the Earth's rotation, a force would only be required to speed up or slow down the rotation. When you see someone at the circus keeping lots of plates spinning on sticks, the only reason they have to keep visiting them to keep them spinning is to compensate for the frictional forces that slow them down.

Answer 9

Millions of garden gnomes line up around the equator and give it a big push. Well, maybe angular momentum has a little bit to do with it, but I'm betting on the gnomes.

Answer 10

Nope I dont think its garden gnomes ... I think it might be a pack of pixies flying around!!! Kidding apart..
Since earth itself acts as a magnet, maybe its rotating because of the influence of the magnetic field of other planets. But its in law with the angular momentum.