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Building a mini physics motor boat -- Help?

  1. Apr 14, 2015 #1
    Should the propeller rotate clockwise or counter-clockwise? Which way will be faster and will allow the boat to accelerate the fastest?
     
  2. jcsd
  3. Apr 14, 2015 #2

    CWatters

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    What do you think and why?
     
  4. Apr 16, 2015 #3
    I don't know that's why I asked??? Please help I really need an answer
     
  5. Apr 16, 2015 #4

    berkeman

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    Staff: Mentor

    What is the context for the question? Please supply many more details so we can try to help you. Is this problem for schoolwork?
     
  6. Apr 16, 2015 #5
    It doesn't matter which way it rotates, as long as it's rotating in the direction it is designed for.
    Either way it's forcing water molecules to move in one direction, so the boat moves in the other direction.
    The water molecules don't care which direction the propeller spins, they only are experiencing a compression effect, so they move.
     
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