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Gravitational pull on an object

  1. Jan 31, 2014 #1
    How much does gravitational pull on an object decrease if the distance is increased 10 fold for example?

    If planet x is stationary and part of a binary star system where star y is 1 AU away from it and star z is 1,000 AU's away, but also has 1,0000 times the mass, which star will exert more gravitational pull on planet x?
     
  2. jcsd
  3. Jan 31, 2014 #2

    jedishrfu

    Staff: Mentor

    use the gravitation formula and notice that its inversely proportional to the square of the distance. so 10 fold increase means 100 fold decrease
     
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