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Center of mass and center of gravity different in non uniform gravitation field?expl

  1. Mar 22, 2010 #1
    give answer to this question
     
  2. jcsd
  3. Mar 22, 2010 #2
    Re: center of mass and center of gravity different in non uniform gravitation field?e

    Here is a simplified laymanized. answer given to me one time. Often for practical purposes, center of mass and center of gravity are considered the same on "earth".

    If you were falling into a "black hole", pull of gravity on your feet may be much stronger than on your midsection. Midsection stays "center of mass". Feet become "center of gravity".

    I'm sure you'll get a much better answer from others here.
     
  4. Mar 22, 2010 #3
    Re: center of mass and center of gravity different in non uniform gravitation field?e

    yes.

    http://en.wikipedia.org/wiki/Center_of_mass
     
  5. Mar 24, 2010 #4
    Re: center of mass and center of gravity different in non uniform gravitation field?e

    u r right but can u tell me that where the gravitaional forces are uniform nd where are these forces nonuniform.
     
  6. Mar 24, 2010 #5

    arildno

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    Re: center of mass and center of gravity different in non uniform gravitation field?e

    The centre of gravity is, essentially that point at which it can be regarded to be concentrated, for purposes of torque calculations.

    If it exists, that is!

    See my post here:
    https://www.physicsforums.com/showthread.php?t=95524
     
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