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Formula for force

  1. Sep 25, 2005 #1
    hello I would like to know the formula for force? :smile:
  2. jcsd
  3. Sep 25, 2005 #2


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    What kind of Force? The cause of a Force :
    Force by a spring, Force by gravity, Force by electricity,
    Force by Pressure, friction Force, air resistance Force,
    Force by magnetism, Nuclear Forces ...

    What purpose of Force? Effects of a Force :
    momentum change, acceleration, Work, compression, ...
  4. Sep 26, 2005 #3
    Need help!

    i would like to know the formula for the force of gravity?
  5. Sep 27, 2005 #4


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    F = mg = GMm/r where M is mass of earth and r is distance from the center of earth.
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