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

Homework Help: Help Required

  1. Nov 8, 2006 #1
    A visitor to a lighthouse wishes to determine the height of the tower. The visitor ties a spool of thread to a small rock to make a simple pendulum, then hangs the pendulum down a spiral staircase in the center of the tower. The period of oscillation is 9.52 s. What is the height of the tower?

    So, the formula that i used was T=2Pi(square root(length/gravity))
    so..that equals 9.52^2=4Pi^2(l/9.81)
    -Then, 9.81(9.52^2)/(4Pi^2)=length
    So, the answer that i got was 2193.727, but it was wrong.
     
  2. jcsd
  3. Nov 8, 2006 #2

    OlderDan

    User Avatar
    Science Advisor
    Homework Helper

    The approach is correct. Check your computation.
     
  4. Nov 8, 2006 #3
    ok

    ok thanks. I got it right. I did wrong on on the calculator lol.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook