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Doppler effect question

  1. Oct 1, 2011 #1
    1. The problem statement, all variables and given/known data
    A car stops at 50m to a road-railway junction. A train is moving with a constant velocity 35m/s towards the junction. If the train emits a siren at a frequency of 100Hz, calculate the maximum and the minimum frequency that can be heard by the car driver.

    velocity of sound: 343m/s


    2. Relevant equations
    9a98009c05b3069e46d3a542dc4bc732.png


    3. The attempt at a solution
    :(
     
  2. jcsd
  3. Oct 1, 2011 #2

    ehild

    User Avatar
    Homework Helper
    Gold Member

    Do you know what v, vr, vs, f, fo mean?

    ehild
     
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