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Homework Help: 2D Motion

  1. May 30, 2007 #1
    1. The problem statement, all variables and given/known data

    One of the fastest recorded pitches in major-league baseball, thrown by Billy Wagner in 2003, was clocked at 101.0 mi/h (Fig. P3.22). If a pitch were thrown horizontally with this velocity, how far would the ball fall vertically (in feet) by the time it reached home plate, 60.5 ft away?

    2. Relevant equations

    t impact = 2 * (vo/g) sin theta

    3. The attempt at a solution

    2 * (9.21404m (60.5ft)/9.8m/s2) sin(90) = 1.88042 m

    1.88042 m * 3.281 ft = 6.16965 ft

    what am i doing wrong?
  2. jcsd
  3. May 30, 2007 #2


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    Homework Helper

    For one thing, it looks like you are mixing ft and meters. What is the 9.21404 m supposed to be?

    Your formula is for "t impact", but you stated the answer in meters?? I think you have confused things. I don't think your formula is correct, either. Can you show how you got it?
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