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Gravitation problem

  1. Dec 21, 2011 #1
    if the earth stops rotating , the value of 'g' will increase by Rω2 at the equator but will remain same at the poles.how does it happen?could you please explain me this?
     
  2. jcsd
  3. Dec 21, 2011 #2

    Doc Al

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    Imagine something was resting on a scale (such as a bathroom scale). What determines the reading of the scale? (Apply Newton's 2nd law.)
     
  4. Dec 21, 2011 #3
    Can u be a little more precise.i could not get what u said.
     
  5. Dec 21, 2011 #4

    Doc Al

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    What didn't you understand?

    Imagine you are at the equator standing on a scale. The scale reads your apparent weight. If the earth stopped rotating, how would the reading change?
     
  6. Dec 21, 2011 #5
    then doc, what about the poles?
     
  7. Dec 21, 2011 #6

    Doc Al

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    Staff: Mentor

    When you figure out the answer at the equator, the answer at the poles will be clear.
     
  8. Dec 28, 2011 #7
    i got the point clearly`.
    thanx.
     
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