the frequency is lower, so the car is moving away from the listener
875/900 = (speed of sound) /
... (speed of sound + speed of car)
they give you the temperature so that you can find the speed of sound (in air)
How fast is a car moving and in what direction if the frequency of the horn drops from 900 Hz to 875 Hz, as heard by a stationary listener? The air temperature is 0oC.
How to solve? I have no idea...
2 answers
would the answer be approx. 9.4557m/s?
cz on the document it says the answer should be 4.68m/s
cz on the document it says the answer should be 4.68m/s
3 answers