The figure below shows wave fronts of sound waves from thesiren of a police car. Two people on both side of the car arerunning at 5 m/s to the left. The frequency of the siren is 400Hz. The person on the left observes a frequency of 388.7 Hz.Speed of sound in air is 340 m/s.a) How fast is the policy car travelling?b) What is the frequency observed by the person on theright?c) What is the wavelength observed by the person on theLrigh?

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Answered: The figure below shows wave fronts of…

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