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Help required

  1. Oct 23, 2008 #1
    two balls are thrown with equal speeds from the top of a cliff of height H. one ball is thrown upward at an angle @ above the horizontal. the other ball is thrown downward at an angle # below the horizontal. show that each ball strikes the ground with same speed and find that speed in terms of H and the initial velocity v'.

    hope that some one will solve this problem for me . with gratitude
  2. jcsd
  3. Oct 23, 2008 #2


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    Welcome to PF!

    Hi naveed4394! Welcome to PF! :smile:

    Hint: use conservation of … something! :wink:
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