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Ship Sink

  1. Sep 17, 2005 #1
    Can any body help me on this one

    A ship sails from sea water into fresh water and therefore sinks slightly.When its load of 600000kg is removed,its returns to its original level.Assuming the sides of the ship are vertical at the water line,find the mass of ship before it was unloaded.

    I fail to understand because we dont have the weight of the ship.
  2. jcsd
  3. Sep 17, 2005 #2


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    Gold Member

    You need the ratio R of the densitiy of ocean water to fresh water.

  4. Sep 17, 2005 #3
    Thanx very much mathman
  5. Sep 18, 2005 #4


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    Staff Emeritus
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    Of course, if you look up R and then solve for W, it will be the answer to your question! Do you see why?
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