1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    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!

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
    f(fric)=(us)(n)
    Fr=n=mv^2/r
    Fz=f=mg
    Ft=0
    w=v/r


    3. The attempt at a solution
    f=(0.64)(9.8*30)=188.16N
    188.16N=(30)(v)^2/2.7, v=4.1151m/s
    4.115m/s/2.7=1.524rad
    1.524rad/1s=1rev/2piradians=60sec/1min=143.65rpm
    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

    PhanthomJay

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Re: Gravitron

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




Similar Discussions: Amusement park ride gravitation problem
Loading...