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Angular acceleration

  1. Jan 17, 2016 #1
    1. The problem statement, all variables and given/known data
    An airplane makes a circular turn of radius 9 km at a constant speed of 650 km/h. Calculate the magnitude of the plane's a. angular velocity, b. centripetal acceleration, c. angular acceleration, d. tangential acceleration

    2. Relevant equations
    w = v/r
    aR = w^2r

    3. The attempt at a solution

    I found angular velocity to be 0.02rad/s and centripetal acceleration to be 3.62m/s^2

    If the speed is constant would the angular and tangential acceleration be zero? I'm not sure that I am understanding the theory behind this.
     
  2. jcsd
  3. Jan 17, 2016 #2

    BvU

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    Definitely :smile:. Angular acceleration ## \alpha = {\Delta \omega\over \Delta t} = 0 ## for constant angular velocity ##\omega##.
    And tangetial acceleration is ##\alpha r##; both are constant in your exercise. On to the next one !
     
  4. Jan 17, 2016 #3
    Thanks
     
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