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Homework Help: Work done by gravity in space

  1. Feb 9, 2010 #1
    1. The problem statement, all variables and given/known data
    The force of gravity acts on a 1250 kg probe in outer space. It accelerates the probe from a speed of 225 m/s to 227 m/s over a distance of 6750 m. How much work does gravity do on the probe?

    Iwas wondering how to approach gravity in this problem. Should I assume gravity as its value on earth or calculate an acceleration for it based on the info given?
  2. jcsd
  3. Feb 9, 2010 #2
    Neither. This is a straight up energy question. You even have more data than is required for the problem.

    Think about applying the work-energy theorem.
  4. Feb 9, 2010 #3


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    Science Advisor
    Homework Helper

    Forget that it's gravity …

    just read it as "a force acts …" :wink:
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