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A Problem I Was Considering But Seems So Simple

  1. Mar 11, 2010 #1
    A ball is thrown up in the air and the speed of the ball at the second second is equal to the speed of the ball after the third second. But what would be the velocity of the ball when the time equals zero.

    I have been thinking about this a lot and I'm certain that there are two answers (and I think one is negative)
     
  2. jcsd
  3. Mar 11, 2010 #2

    Doc Al

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    Staff: Mentor

    Show how you solved it. (A negative initial velocity wouldn't get you very far.)

    Hint: Use symmetry.
     
  4. Mar 11, 2010 #3
    Another hint: The speeds are equal.
     
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