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Mechanical Energy Question

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  1. Jan 24, 2015 #1
    Tim drops his watch from a 3-story-building, 12.5 m above ground. In task a. you were asked to find what the v was when it hit the ground, the answer was 15.7. However I am having trouble finding the answer to task b in which you are asked to find the h when the watch is dropped at the speed of 10 m/s.

    In a I solved the equation by using
    Ek = Ep

    But I'm having trouble with b
     
  2. jcsd
  3. Jan 24, 2015 #2

    Dale

    Staff: Mentor

    What have you attempted so far with B?
     
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