At rest, a car's horn sounds the note A (440 Hz). The horn is
sounded while...
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Physics
At rest, a car's horn sounds the note A (440 Hz). The horn issounded while the car is moving down the street. A bicyclist movingin the same direction with one-third the car's speed hears afrequency of 403 Hz.
(a) Is the cyclist ahead of or behind the car?
ahead/behind   Â
(b) What is the speed of the car? (Answer in m/s)
Answer & Explanation
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Since the frequency of the sound that is heard by the bicyclist is lower in frequency than the original sound we know that the car must be moving away from
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