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Calculating force of colision in Newton's Cradle

  1. Jul 21, 2010 #1
    I'm curious to know the amount of kinetic energy that is at the point of impact on the stainless steel balls with weight of 145gms, and hanging at the end of arm 38cm long. Any assistance with formulas, etc, will be greatly appreciated. Thanks..
  2. jcsd
  3. Jul 21, 2010 #2
    Well, it depends on how high you raise the starting ball. Then you just say Potential Energy is converted to K.E so the answer is just mgh.
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