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Homework Help: Amusement park ride gravitation problem

  1. Mar 8, 2009 #1
    1. The problem statement, all variables and given/known data

    In an old-fashioned amusement park ride, passengers stand inside a 5.4-m-diameter hollow steel cylinder with their backs against the wall. The cylinder begins to rotate about a vertical axis. Then the floor on which the passengers are standing suddenly drops away! If all goes well, the passengers will "stick" to the wall and not slide. Clothing has a static coefficient of friction against steel in the range 0.64 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. A sign next to the entrance says "No children under 30 kg allowed."

    2. Relevant equations

    3. The attempt at a solution
    188.16N=(30)(v)^2/2.7, v=4.1151m/s
    This answer is not correct, however. Any guidance is appreciated. I don't want the answer, just what I am doing incorrectly.
  2. jcsd
  3. Mar 8, 2009 #2


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    Science Advisor
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    Re: Gravitron

    Please see above in red
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