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Rotational period

  1. Apr 8, 2008 #1
    Hi i am studying for a test and found this problem that i have no clue how to do.. I was hoping for some help with it like equation to start.
    thanks

    1. The problem statement, all variables and given/known data

    In an amusement park ride called The Roundup, passengers stand inside a 14.0 m-diameter rotating ring. After the ring has acquired sufficient speed, it tilts into a vertical plane.
    What is the longest rotation period of the ring such that the riders will not fall off at the top?

    All i know is that the weight force much be less than normal force right? and do I use v=2*pi*r/T
    I dont know where to start thanks
     
  2. jcsd
  3. Apr 8, 2008 #2
    Never mind I figured it out used V_c=(r*g)^(.5) to find v then just plug and chug
     
  4. Apr 8, 2008 #3
    ok great then :)
     
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