As you stand by the side of the road, a car approaches you at a constant speed, sounding its horn, and you hear a frequency of 80.0 Hz

After the car goes by, you hear a frequency of 60.0 Hz. What is the speed of the car? Assume that he speed of sound in air is 343 m/s.
A)

64 m/s

B)

49 m/s

C)

16 m/s

D)

36 m/s

E)

25 m/s


B

Physics & Space Science

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