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: Ugh i suck at this and need your help

  1. May 25, 2003 #1
    I am doing a lab on finding g using a simple pendulum experiment.

    the formula is:

    T = 2pi sqrt(L/g)

    how is that rearranged to find g?

    I got g^2=2piL / T


    is that right? thanks
     
  2. jcsd
  3. May 25, 2003 #2
    g = ((L)/((T)/(2pi))^2)
     
  4. May 26, 2003 #3

    enigma

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    PIML,

    You forgot to square the 2*pi
     
  5. May 26, 2003 #4
    Just do the same things on each side.

    e.g. if a = 1/b, then multiplying on both sides by b gives

    ab = b/b = 1

    ab = 1.

    Similar for multiplication and to invert square root, simply square both sides.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook