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Stone Dropping vs Ball Throwing

  1. Jun 1, 2007 #1
    A stone is thrown upward from the ground with an initial speed of x m/s; at the same instant, a ball is dropped from a tower 55,9 m high. Ball and stone will hits in height what is the maximum height of the stone.

    What is the intial speed of stone?


    I'm sorry about my really bad English...:cry:
     
  2. jcsd
  3. Jun 1, 2007 #2

    Kurdt

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    In this question they will probably want you to give the equation for maximum height in terms of x. This is so you can put any starting speed in and come up with a maximum height.
     
  4. Jun 1, 2007 #3
    can anyone help with this equation?

    i sucks really much with this...
     
  5. Jun 1, 2007 #4

    Kurdt

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    We can't give you an answer. Are you familiar with the kinematic equations? What equations will describe the motion of the ball and the motiopn of the stone?
     
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