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Homework Help: How to find normal force?

  1. May 22, 2010 #1
    1. The problem statement, all variables and given/known data
    Q: At a circumferential speed of 3m/s, what is the normal force exerted by the walls on a person having a mass of 70kg?

    diameter of room is 3.1m
    coefficient of friction between the people and the wall is .4

    2. Relevant equations
    circumferential speed=2(pi)r/t....t is the amount of time it takes to complete one revolution
    Friction force = (coefficient of friction) × (normal force)

    3. The attempt at a solution
  2. jcsd
  3. May 22, 2010 #2
    You must attempt to make a solution before receiving assistance.
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