In the figure shown, a source of sound of frequency 510 Hz moves with constant velocity vs=20m/s in the direction shown. The wind is blowing at a constant velocity vw=20m/s towards an observer who is at rest at point B. Find the frequency (in Hz) detected by the observer corresponding to the sound emitted by the source at initial position A. (speed of sound relative to air = 330 m/s)

In the figure shown, a source of sound of frequency 510 Hz moves with

1.	In the figure shown, a source of sound of frequency 510 Hz moves with constant velocity vs=20m/s in the direction shown. The wind is blowing at a constant velocity vw=20m/s towards an observer who is at rest at point B. Find the frequency (in Hz) detected by the observer corresponding to the sound emitted by the source at initial position A. (speed of sound relative to air = 330 m/s)
Answer» In the figure shown, a source of sound of frequency $510$ Hz moves with constant velocity $v_{s} = 20 m/s$ in the direction shown. The wind is blowing at a constant velocity $v_{w} = 20 m/s$ towards an observer who is at rest at point B. Find the frequency (in Hz) detected by the observer corresponding to the sound emitted by the source at initial position A. (speed of sound relative to air = $330$ m/s)

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