A stationary source is emitting sound at a fixed frequency $f_{0}$ , which is reflected by two cars approaching the source. The difference between the frequencies of sound reflected from the cars is $1.2 %$ of $f_{0}$ . What is the difference in the speeds of the cars (in km per hour) to the nearest integer ? the cars are moving at constant speeds much smaller than the speed of sound which is 330 ms^(-1)

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A stationary source is emitting sound at a fixed frequency

f_{0}

, which is reflected by two cars approaching the source. The difference between the frequencies of sound reflected from the cars is

1.2 %

f_{0}

. What is the difference in the speeds of the cars (in km per hour) to the nearest integer ? the cars are moving at constant speeds much smaller than the speed of sound which is 330 ms^(-1)

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Question Text

A stationary source is emitting sound at a fixed frequency

f_{0}

, which is reflected by two cars approaching the source. The difference between the frequencies of sound reflected from the cars is

1.2 %

f_{0}

. What is the difference in the speeds of the cars (in km per hour) to the nearest integer ? the cars are moving at constant speeds much smaller than the speed of sound which is 330 ms^(-1)

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