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Water Balloon Drop Final Exam Review

  1. Dec 13, 2008 #1
    Im doing Final exam review this is the first question please check! Thank you!

    1. The problem statement, all variables and given/known data
    1. Water balloon drop. You and your physics major roommate devise a plan to drop water balloons on
    classmates entering your dorm. Just as they cross a mark that’s 3.0 m from the door, you’ll drop a water
    balloon. How high above the classmates entering the front door do you need to be to carry out your plan?
    You’ve determined that most students walk at a speed of about 1.5 m/s.

    2. Relevant equations
    yf=yi+Vi(delta T)+(1/2)g(delta T)^2

    (delta x)/ T = Velocity

    3. The attempt at a solution

    3 meters / 1.5 m/s = 2 seconds = T

    yf=0 ; yi=? ; Vi=0 ; Delta T = 2 s



    To drop the balloons the students have to be 19.6 meters high to hit their target!
  2. jcsd
  3. Dec 13, 2008 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Looks good.
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