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Question about freefall

  1. Feb 16, 2009 #1
    hi i was wondering if this formula is legitimate. it finds velocity when there is no friction and no time involved.

    [tex]
    \sqrt{2\ G \Delta\ x_{y}}
    [/tex] =V

    G is 9.8m/s

    thanks, eliot
     
  2. jcsd
  3. Feb 16, 2009 #2

    Doc Al

    User Avatar

    Staff: Mentor

    It's legit. It gives you the speed after falling the given distance, starting from rest. (Use small g for the acceleration due to gravity; big G usually stands for the universal gravitational constant.)
     
  4. Feb 16, 2009 #3
    o yeah small g. ok thanks, i appreciate it. :)
     
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