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Why does a canoe float?

Will a concrete canoe float?

  • a) we don't have enough information to answer b)yes if the curve of the bottom is such that it displaces only a little water c)no concrete can never float d)yes if the curve of the bottom is such that it can displace a lot of water

  • Answer:

    Saxo *MAY* be right, but for the wrong reason. Yes, concrete is more dense than water, but so is steel - the primary component of large ship building. Concrete on its own will never float, but it can be fashioned into a boat-type design, that could float quite successfully. In fact, a 1/4 inch of concrete is FAR lighter than a 1/4 inch of steel - and as discussed previously, if in the correct shape, steel can "float" just fine. The correct answer (using your multiple choice answers) is D, with a bit of A (since your question isn't CAN?, it's WILL? - and we don't have enough information to answer this with 100% certainty).

JustWond... at Yahoo! Answers Visit the source

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I agree. D or A. I have, myself, actually sat in a concrete canoe floating in water which was part of an engineering competition. It's all about whether the design allows it to displace a volume of water that is heavier than the weight of the canoe.

c_kayak_fun

Its all about displacement. Structural engineering students have concrete canoe competitions every year and they definetly do float. So the anwser is D.

jeep32mudtaman

C, because the density of the concrete is higher than water, and that determines if it can float or not. Water density=1, concrete density= ~10

the_ravenclaw_14

I'm with fhl on this one - but wouldnt it be a tad uncomfortable and a devil to roll!

robert m

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