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![[Post New]](/templates/default/images/icon_minipost_new.gif) 30 Jul 2007 15:24:22 IST
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what are the forces responsible for rotation of earth?
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30 Jul 2007 15:32:49 IST
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may be this answers your question........i read it somewhere
There is no force that causes the planets to rotate. Most of the rotation comes about from the conservation of angular momentum. Angular momentum is given by L=m*w*r2 where m is the mass, w is the angular velocity in radians per second, and r is the radius of the circular motion. Due to conservation of angular momentum, if the radius of the orbit decreases, then its angular velocity must increase (as the mass is constant).
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woods are lovely, dark and deep.....
but i have promises to keep....
and miles to go before i sleep....
and miles to go before i sleep.... |
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30 Jul 2007 20:11:26 IST
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No force is required for rotation of the earth. It is rotating on its own
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Krishna Gopal Singh
B.Tech Chemical Engg
IIT Delhi 2002
Currently doing PhD from IIT Delhi |
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1 Aug 2007 08:13:35 IST
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so sir u mean to say theres is no reason y it is rotating....can u make urself clear....??? plzzzz
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1 Aug 2007 08:53:52 IST
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It is rotating today because it was rotating yesterday. No force it required to keep rotating a body if it is once set up in rotational motion
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Krishna Gopal Singh
B.Tech Chemical Engg
IIT Delhi 2002
Currently doing PhD from IIT Delhi |
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