1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Physical pendulum

  1. Apr 20, 2012 #1
    1. The problem statement, all variables and given/known data
    Two pendulums have the same dimensions (length ) L and total mass (m). Pendulum A is a very small ball swinging at the end of a uniform massless bar. In pendulum B , half the mass is in the ball and half is in the uniform bar.

    A. Find the period of pendulum A for small oscillations.

    B. Find the period of pendulum B for small oscillation

    2. Relevant equations



    3. The attempt at a solution

    For A. I got 2∏√L/g which is correct however i am struggling for B

    What I did was

    Pendulum B I= Ibar + Ibar= 1/3 (m/2)L^2+m/2L^2= 2/3mL^2
     
  2. jcsd
  3. Apr 21, 2012 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Hi Mdhiggenz! :smile:

    (try using the X2 button just above the Reply box :wink:)
    Looks ok! :smile:
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Physical pendulum
  1. Physical pendulum hole (Replies: 5)

  2. Physical Pendulum (Replies: 6)

  3. Physical pendulum (Replies: 1)

Loading...