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Calc Question need help

  1. Jan 18, 2010 #1
    If two masses m1 and m2 (in kg) are a distance d (in m) apart, then the force F (in N) of gravity is
    F = Gm1m2/d2, where G = 6.67 × 10−11 Nm2/kg2. If the mass of the Earth is 5.97 × 1024 kg and the
    radius of the Earth is 6380 km, calculate the work required (in J) to send a mass of 1 kg to the edge of
    the universe. Be careful with units and note that this will involve an improper integral.
     
  2. jcsd
  3. Jan 18, 2010 #2

    Mark44

    Staff: Mentor

    What have you tried so far?
     
  4. Jan 18, 2010 #3
    I need help starting it. I have tried using the way my physics teacher told me too, however i have no clue how to involve the use of improper fractions in this question
     
  5. Jan 18, 2010 #4

    Mark44

    Staff: Mentor

    What will the integral in this problem need to look like?
     
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