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If earth stops rotating

 
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Jan1-13, 07:41 PM   #18
 

If earth stops rotating


Quote by TurtleMeister View Post
The question as phrased in the OP is unrealistic. It's one of those questions that we see here quite often that asks; If we ignore the laws and theories of physics by allowing "A" to happen, then what do the laws and theories of physics predict will be the effects of "A"? Astronuc correctly rephrased the question back in post number 6.
Sorry but Astronuc's rephraseing is no more realistic than the OP "unrealistic" phraseing of the orginal enquiry.
He presented a possible though unlikely scenerio so what's the problem.
Are you saying it's not possible under any cercumstances.
 
Jan2-13, 06:01 PM   #19
 
I have a sneaking suspicion that the OP was trying to determine whether the rotation of the earth resulted in gravity, and that 'switching' off the rotation of the earth would result in all things not fixed to the surface to float away into 'space'.
Some how, my brother also shared this same line of thinking through what he was taught back at school 20 years ago. Clearly he wasn't paying attention in class and completely missed the whole meaning of the lesson, and he is not alone!

So to answer the OP, gravity on the earth IS NOT a result of the rotation of the earth, it is a result of the mass of the earth regardless of whether it is spinning or not.
The moon has gravity which is something like a 1/6th of the earths (based on its mass and the distance of the surface to its center of mass). It spins on its axis every time it orbits the earth, but things on its surface don't float away from it due to the moon not rotating as 'quickly' as the earth.
Stopping the earths rotation suddenly would result in having to deal with inertia of every individual 'body' that contains mass (which gets messier the close to the equator you are).


Damo
 
Jan3-13, 05:43 AM   #20
 
Clearly he wasn't paying attention in class and completely missed the whole meaning of the lesson,
Despite this he still managed ro become a teacher
 
Jan3-13, 06:20 AM   #21
 
Quote by Buckleymanor View Post
Despite this he still managed ro become a teacher
I must add to the above that I was regarding that statement toward my brother, not to jayeshtrivedi directly.

Damo
 
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