1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    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!

Object swung in cylinder

  1. Feb 20, 2010 #1
    A 2.91 kg object is swung in a vertical circular
    path on a string 3.94 m long.
    The acceleration of gravity is 9.8 m/s2 .
    If the speed at the top of the circle is 7 m/s,
    what is the tension in the string when the
    object is at the top of the circle?

    can you show the formulas needed to get to the answer? Thanks a lot
  2. jcsd
  3. Feb 20, 2010 #2


    User Avatar
    Homework Helper

    Re: Tension

    Here they are:

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook