1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: 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


    User Avatar
    Science Advisor
    Homework Helper
    2017 Award

    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
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted