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The answer to Doppler effect

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A person with perfect pitch sits on a bus bench listening to the 450-Hz horn of an approaching car. If the person detects a frequency of 470-Hz, how fast is the car moving?

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Solution Summary

The solution calculates the speed of the car using the frequency of the horn of an approaching car. The Doppler effect is examined.

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A person with perfect pitch sits on a bus bench listening to the 450-Hz horn of an approaching car. If the person detects a frequency of 470-Hz, how fast is the car moving?

In this case the source of sound (car) is moving towards the observer ...

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