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-   -   Gravitaitonal forces (https://www.askmehelpdesk.com/showthread.php?t=270139)

  • Oct 16, 2008, 03:19 PM
    human09fishie
    gravitaitonal forces
    What is the distance from the Earth's center to a point outside the Earth where the gravitational acceleration due to the Earth is 1/14 of its value at the Earth's surface?
  • Oct 17, 2008, 07:41 AM
    ebaines

    Remmeber that gravity forces are inversely proportional to the distance to the object's center of gravity squared. That is:



    If you call the radius of the earth R, then the gravity at the earth's surface (where r=R) is 1/R^2. So you're interested in finding the value of r such that :



    Can you take it from here?
  • Oct 18, 2008, 04:48 AM
    Credendovidis
    Hello human09fishie

    Have a look here for all data and explanation needed to calculate the distance - LINK

    Success !

    :)

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