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Get me started (fluids)

  1. Nov 13, 2004 #1
    A ship, carrying freshwater to a desert island in the Caribbean, has a horizontal cross-sectional area of 3000 m^2 at the waterline. When unloaded, the ship rises 8.21 m higher in the sea. How much water was delivered?
     
  2. jcsd
  3. Nov 14, 2004 #2
    anyone ?
     
  4. Nov 14, 2004 #3

    arildno

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    Set up balance of forces (weight of object versus buoyancy force) in both cases.
    Find from this the removed weight from the ship.
     
  5. Nov 14, 2004 #4
    um...(M+m)g=pgAx for before
    Mg=pgA(x-9) for after, where M is mass of ship and m is mass of water, p is density of seawater, A is cross sectional area? Now if that's correct, how do I compare them?
     
  6. Nov 14, 2004 #5
    can anyone help? I'm studying for a test on this and the test is tomorrow
     
  7. Nov 15, 2004 #6

    arildno

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    Put your first equation into the right place in your second equation:
    Mg=(M+m)g-pgA9
    or simply:
    mg=pgA9
     
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