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Homework Help: Two Space Crafts Falling

  1. Mar 12, 2010 #1
    Two Space crafts, X and Y, of equal masses, are falling towards the earth.
    A) What are the values of the following ratios
    i Wx/Wy
    ii acceleration of X/acceleration of Y

    B) Why would the astronaut in either spacecraft be considered to be 'Weightless'

    PLEASE NOTE: There is a diagram that show Y is 5r (away from earth) and X is 2r (away from earth).

    The radius of earth is 6.4x10^6 m

    Any help would be very much liked.
    Thankyou in advance
  2. jcsd
  3. Mar 12, 2010 #2


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    Homework Helper

    Have you ever seen the equations F=GMm/r^2 and F=mg? Those are all you need to solve part a.
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