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Need help with this

  1. Oct 5, 2006 #1
    the question: Someone throws a ball horizontally from the top of a 25.0 m high cliff and the ball lands 45.0 m from the base of the cliff

    A) What was the initial velocity of the ball?
    B) What was its speed wen it hit the ground?

    I don't need complete work just a beginning please.
     
  2. jcsd
  3. Oct 5, 2006 #2
    Use the kinematics equations to solve the problem. If its starting from rest whats the initial velocity?
     
  4. Oct 5, 2006 #3
    reply

    A ball thrown horizontally will reach the ground in the same amount of time as a ball that was simply dropped from the same height.

    There is an animation here: (as well as an explanation)
    http://math.cankaya.edu.tr/index/hedef/proje2004_2005Bahar/TolgaGUL/Tolga03.html" [Broken]
     
    Last edited by a moderator: May 2, 2017
  5. Oct 5, 2006 #4

    Its not exactly the same but its so close that its negligable.
     
    Last edited by a moderator: May 2, 2017
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