A car approaches a pedestrian standing on the side of the road. The car is traveling at 24.2 m/s. The horn of the car emits a sound wave wit

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A car approaches a pedestrian standing on the side of the road. The car is traveling at 24.2 m/s. The horn of the car emits a sound wave with a frequency of 482 Hz. What frequency is heard by the pedestrian

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  1. Answer:

    518.4 Hz

    Explanation:

    let speed of sound is 344 m/s

    f’ = v / (v- vs) x f

    = 344 / (344-24.2) x 482

    = 1.075 x 482

    = 518.4 Hz

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