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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


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

    ok thanks. I got it right. I did wrong on on the calculator lol.
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