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Homework Help: Finding the coefficient of static friction in a centripiton force equation

  1. May 1, 2012 #1
    1. The problem statement, all variables and given/known data

    a bus passanger has her laptop sitting on the seat next to her while the bus moves at 10m/s, the bus goes around a turn with a radius of 25m. what is the coefficient of static friction in order to keep the laptop from sliding?

    2. Relevant equations

    3. The attempt at a solution
    ac=v^2 /r
    cant figure out the correct formula of formulas to use
  2. jcsd
  3. May 1, 2012 #2


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    Staff Emeritus
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    It's a force problem, so ∑F=ma is a good one to consider using.

    As with all force problems, start by drawing a free-body diagram.
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