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Which reacted faster, foot or hand?

  1. Oct 14, 2009 #1
    Hi ! I have many questions and I did try to answers them, but I want to know if I am incorrect.
    1) Which reacted faster, foot or hand ? try to use newton explanation
    I think the hand will react faster because it is closer to the brain... to send signal, but I am not sure how to explain that with newton laws ( 1st and 2nd )

    2) Why was the distance betweeen the top of the foot and the ball only measured to the nearest centimeter, while the place that caught the ruler was measure to nearest millimeter?
    My guess is that with the ruler I could see the measurement and when the ball drop on the foot, the measurement is off by some millimeter.

    3) Explain why the rocket and the ruler are both projectiles, despite their different paths.
    this question I HAVE No idea.
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Oct 14, 2009 #2

    kuruman

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    Homework Helper
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    Hi lostsummer, welcome to PF. It would help us help you if you posted the statement of the problem with the underlying physical situation, instead of just the questions related to it. We are not mind readers, you know.
     
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