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Physics Pendulum Problem

  1. Oct 20, 2008 #1
    1. The problem statement, all variables and given/known data
    An image of the problem may be found here:

    http://i417.photobucket.com/albums/pp258/whatsntomake/Physics/Eight.png

    A pendulum of length 0.950 m swings in a vertical plane (see figure). When the pendulum is in the two horizontal positions θ = 90° and θ = 270°, its speed is 4.80 m/s.

    2. Relevant equations

    A=v^2/r

    3. The attempt at a solution
     
  2. jcsd
  3. Oct 20, 2008 #2

    Hootenanny

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    Welcome to Physics Forums.

    Be careful with your significant figures. How many significant figures does the question ask for?
     
  4. Oct 20, 2008 #3
    Hi, thanks for your quick response.
    The problem does not specify any significant figure so it fine to any number of significant digits as long as the answer is close by a certain margin of error.

    also I am not sure if the tangential acceleration I had is correct
     
    Last edited: Oct 20, 2008
  5. Oct 20, 2008 #4

    Hootenanny

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    Okay that's fair enough.
    How did you calculate it?
     
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