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Homework Help: Motions in Space

  1. Feb 8, 2010 #1
    1. The problem statement, all variables and given/known data
    A bowling ball rolls off a giant's table at a speed of 15 m/s and lands 45 m from the base of the table.

    (a) for how many seconds is the ball falling?
    (b) how high is the table?

    s=15 m/s
    d=45 m
    v(i)=0
    v(f)=15 m/s ?
    t=?


    2. Relevant equations

    v=d/t
    t=d/v
    d=vt

    3. The attempt at a solution

    t=45 m / 15m/s

    (a) t=3 s

    (b) i honestly have no clue
     
  2. jcsd
  3. Feb 8, 2010 #2
    Use
    Dy = (1/2)*g*t^2

    where g is acceleration due to gravity. Use 9.8m/s^2 or 10m/s^2 depending on what your course uses.
     
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