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-   -   Frequency of a pendulum (https://www.askmehelpdesk.com/showthread.php?t=533167)

  • Dec 9, 2010, 12:02 PM
    bayley86
    Frequency of a pendulum
    A simple pendulum has a bob attached to inextensible cord 60 cm long. Determine it s frequency
  • Dec 9, 2010, 12:16 PM
    Unknown008

    Use the formula:

  • Dec 9, 2010, 12:31 PM
    bayley86
    Hi thanks for your reply could you please explain what I put into the formula and were I'm not very good at this sort of thing
  • Dec 10, 2010, 01:59 AM
    Unknown008

    Sure, the frequency is f,
    pi is a constant, which is about 3.14
    l is the length of the thread, in metres
    g is the acceleration due to gravity, usually taken as 9.8 m/s^2

    This gives:



    Solve for f :)
  • Dec 13, 2010, 10:48 AM
    bayley86
    Comment on Unknown008's post
    Is the answer 1.554 Hz
    Thanks for your help
  • Dec 13, 2010, 10:54 AM
    Unknown008

    No, this is the value of 1/f.




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