Another Physics Brain Teaser

Discussion in 'All Things Boats & Boating' started by DGreenwood, Jan 27, 2007.

  1. DGreenwood
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    DGreenwood Senior Member

    Another teaser involving the same displacement question:

    If a bulldozer were parked on top of a floating barge, would the barge float higher or lower than if it were suspended under the barge on a cable (without touching the bottom)?
     
  2. scott steffe
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    scott steffe Junior Member

    lol this is kool
    well i would say higher
    there has to be floatation some where on the bull dozer to off set
    some weight unless you made sure there were no sealed compartments
     
  3. fiberglass jack
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    fiberglass jack Senior Member

    how much fuel is in the bulldozer are the tanks empty or full are the wheels rubber or tracks
     
  4. scott steffe
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    scott steffe Junior Member

    fiberglass jack

    what you say man you like itching
    like florida need a job maybe lol
     
  5. DGreenwood
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    DGreenwood Senior Member

    OK instead of a bulldozer lets just say a big block of solid steel.

    Sheesh...I knew somebody was going to take it off on that tack!
     
  6. scott steffe
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    scott steffe Junior Member

    well i think it would still be higher
    because there still has to some flotation
     
  7. Man Overboard
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    Man Overboard Tom Fugate

    Ha, who is being teased by this brain teaser the student or the pupil. Well, at least a block of steal removes most variables, but guaranteed some one will ask for more info.
     
  8. safewalrus
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    safewalrus Ancient Marriner

    OK Tom, what kind of steel, stainless or mild (not that it really matters but you did say someone would ask and I do like to oblige - occasionally. Specially if it's a dumb assed question!

    'Greeny' If you look on your 'posts' you should find an 'edit' button - for your use only! push that and you can respell yer words! I use it all the time, bit like using a spell checker in emails or an 80 year old woman - everybody knows it's there but nobody wants to go there! (somebody's going whinge about his granny I just know it!)
     
  9. scott steffe
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    scott steffe Junior Member

    i know your talking about my granny lol
    im bad i know it sorry
    ill spell it my way forsure
    lol
     
  10. scott steffe
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    scott steffe Junior Member

    lol
    ok what if the bottom of the steel block had dempels (like a golf ball)
    would it be higher with or without?
     
  11. DGreenwood
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    DGreenwood Senior Member

    I use the edit button constantly. (why don't I check spelling before I post it?)
    but...it does not allow you to edit the thread title....oops. Some kind soul corrected it for me though...Thanks.
     
  12. ancient kayaker
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    ancient kayaker aka Terry Haines

    Here's another one. The iron ingots from the ship in the lock are thrown overboard and land in a boat. No change in water level, obviously. They punched a hole in the boat which starts to sink. When the boat is just on the point of sinking there is surely no change in water level.

    So what happens after the boat vanishes below the surface?
     
  13. DanishBagger
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    DanishBagger Never Again

    You won't be able to step into it ...
     
  14. timgoz
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    timgoz Senior Member

    Jack,

    No, it was not me.

    Bagger,

    I just had to do it. I had come to the right answer before the experiment, but it Was sorta cheating.

    Take care.

    TGoz
     

  15. DanishBagger
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    DanishBagger Never Again

    You too, Tim
     
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