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How to find magnitude of centripetal acceleration and of net force?

  1. Oct 2, 2011 #1
    1. The problem statement, all variables and given/known data
    A ferris wheel at a carnival has a radius of 12 m and turns so that the speed of the riders is 8m/s
    a) what is the magnitude of the centripetal acceleration of the riders?
    b) what is the magnitude of the net force required to produce this centripetal acceleration for a rider with a mass of 70kg?


    2. Relevant equations

    Centripetal acceleration = v^2/r
    F = ma
    Fnet = N - W = m(centripetal acceleration)

    3. The attempt at a solution

    centripetal acceleration = 8^2/ 12 = 5.33 m/s^2
     
  2. jcsd
  3. Oct 2, 2011 #2

    Doc Al

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    Staff: Mentor

    Looks good.
     
  4. Oct 2, 2011 #3
    so, 5.33 m/s^2 would be the answer for part A and for part B i just multiply the acceleration by the mass?
     
  5. Oct 2, 2011 #4

    Doc Al

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    Staff: Mentor

    That's correct.
     
  6. Oct 2, 2011 #5
    Boy was I over thinking that. Thanks a lot for the clarification
     
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