Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

A Pendulum Question

  1. Jan 21, 2006 #1
    A simple pendulum is 5.00m long. (a) What is the period of small oscilliations for this pendulum if it is located in an elevator accelerating upward at 5.00 m/s^2? (b) what is its period if the elevator is accelerating downward at 5.00 m/s^2?:confused:
  2. jcsd
  3. Jan 21, 2006 #2


    Staff: Mentor

    What id the period for an arbitrary acceleration g?

  4. Jan 21, 2006 #3


    User Avatar

    the pendulum's period is just the normal period of the pendulum with
    [tex] g [/tex] modified by the different accelerations
    [tex] \tau = 2 \pi \sqrt{\frac{L}{g}} [/tex]
    goes to
    [tex] \tau = 2\pi \sqrt{\frac{L}{g+a_1}} [/tex]
    [tex] \tau = 2\pi \sqrt{\frac{L}{g-a_1}} [/tex]
    Last edited: Jan 21, 2006
  5. Jan 21, 2006 #4


    User Avatar

    why didn't the latex get processed?

    nm [tex] does not equal [ tex ]
    Last edited: Jan 21, 2006
  6. Jan 21, 2006 #5
    Thank you

    Thank you for helping me, can i add you as a buddy?:blushing:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook