why does the earth move in its axis with a certain direction, without using any force.
2007-01-16 00:24:59 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Newton's First law of Motion: Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
That is, there is no force needed to move it. It's already moving and has been since the matter accreted to form the Earth billions of years ago.
There is no force working to counteract the rotation (except the tidal effect of the Moon, but that's working very slowly), so you don't need to have any input energy to keep it spinning.
2007-01-16 00:49:36 · answer #1 · answered by gebobs 6 · 1⤊ 0⤋
I think you mean on it's axis. If this is indeed the case then the only answer I can give you is that it doesn't the earth's axis is actually parallel to the sun's axis which are both determined by their north and south poles these poles are constantly pushing or pulling at each other (I'm not sure which), the resulting force is the spin of the earth, and the wobble, but that's a whole other story.
2007-01-16 10:16:10 · answer #2 · answered by superpsychicman 2 · 0⤊ 0⤋
Cuz that's how the universe works.
2007-01-16 08:27:59 · answer #3 · answered by greek_spam 4 · 0⤊ 0⤋