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Cross hanging from rearview mirror

  1. Nov 23, 2009 #1
    A race-car driver is driving in a circle at a fixed velocity. He has a cross hanging down from a string on his rearview mirror. Which of the listed forces impacts the hanging cross as the driver drives around a circle at a fixed velocity?

    Gravity, Friction, Tension, and Centripetal Force

    I say gravity, tension, and centripetal force.

    Is this correct?
     
  2. jcsd
  3. Nov 23, 2009 #2
    as it is steady state you are correct as long as you can disregard the static friction within the strands of the string?
     
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