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Valentin [98]
3 years ago
13

A commuter train blows its 200-Hz horn as it approaches a crossing. The speed of sound is 335 m/s. An observer waiting at the cr

ossing receives a frequency of 207 Hz. What is the speed of the train?
Physics
1 answer:
pogonyaev3 years ago
4 0

Answer:

346m/s

Explanation:

v1=335m/s

f1=200hz

f2=207hz

v2=?

v1/f1=v2/f2

335/200=v2/207

v2=335*207/200

v2=346m/s

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