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Spin and gravity of earth, no math

  1. Oct 14, 2009 #1
    1. The problem statement, all variables and given/known data
    A. what would happen if the earth suddenly stopped spinning
    B. what would happen if the earth lost it's gravitational pull

    2. Relevant equations

    3. The attempt at a solution
    these are some ideas i have, can you tell me if they are correct or not, and some ideas you may have as well.
    A.
    -satellites would fly out of orbit due to angular momentum
    -one side of earth would overheat, the other freeze
    -moon would collide with earth, no centripetal force to keep it away
    B.
    -everything would be weightless and momentum of spinning earth would cause everything to lift up into the air
    -moon would fly away, earth fall off of it's tilted axis and wobble
    -earth would fall out of orbit with sun?
     
  2. jcsd
  3. Oct 14, 2009 #2

    lewando

    User Avatar
    Gold Member

    A
    The amount of energy required to stop the earth would probably make it melt.
    Gravity would still work.
    Problem does not say anything about the moon stopping in its tracks. If it did, yes, moon and earth would collide, otherwise it would keep on orbiting.
     
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