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Homework Help: Simple free-fall problem!

  1. Sep 11, 2011 #1
    1. The problem statement, all variables and given/known data

    I am just trying to get confirmation I am correct. Refer to the picture below, which shows the question and diagram.

    I am working on 2, a)


    2. Relevant equations

    3. The attempt at a solution

    So I am to draw for ball 2 as if I was throwing the ball upwards against gravity.

    Now, would my line and points be the same as Ball 1, just flipped over? Any help on this question(2,a) would be great!
  2. jcsd
  3. Sep 11, 2011 #2
  4. Sep 13, 2011 #3
    Spinnor, the question is not asking to draw the points as if the ball bounced, but insted launched from t = 0

    From what I understand, it would look the same, in terms of the points correct?

    Thanks anyone for the help!
  5. Sep 13, 2011 #4
    Can anyone else take a crack at it? Much appreciated, thanks!

    Again... im having troubles with 2, a) and b)
  6. Sep 13, 2011 #5
    Draw the same set of points on the right and start at the bottom and number them 1,2,3,4,5. Once you do this you should be able to do the rest. They don't meet half way up, with a little thought you should come up with the answer.
  7. Sep 13, 2011 #6

    So would they meet between the 2nd and 3rd point?

    Can you help me out with this "Which ball has travelled further and why?"

    My guess would be ball 2 because its initial acceleration is greater ?
  8. Sep 14, 2011 #7
    Anyone else? Much appreciated!

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