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Force of gravity from different heights

  1. Apr 9, 2010 #1
    How do I find the difference in gravity pull on a object dropped from 1km, 10km and 100km based on the objects mass (such as earth vs the moon)

    e: Don't care about drag
  2. jcsd
  3. Apr 9, 2010 #2
    You can use the equation:

    F = (-G x m1 x m2) / r^2

    F is Force
    G is Gravitational constant (6.7x10^-11) (Make it negative to show attraction)
    m1 is the mass in kg of an object
    m2 is the mass in kg of another object
    r is the radius or the distance in meters between the objects.

    Hope this helps!
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