2. You measure the frequency of a steam train whistle as it approaches you with constant speed to be 552 Hz. After it pa

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2 You Measure The Frequency Of A Steam Train Whistle As It Approaches You With Constant Speed To Be 552 Hz After It Pa 1 (108.53 KiB) Viewed 41 times

2. You measure the frequency of a steam train whistle as it approaches you with constant speed to be 552 Hz. After it passes you, its frequency is measured as 486 Hz. Take the speed of sound to be 343 m/s and assume you are standing still by the side of the tracks. (a) How fast was the train moving? (b) What is the true frequency of the whistle? Challenging. On another occasion you are out near the train tracks again and detect the whistle of the approaching steam train at 552 Hz. However, you simultaneously measure that the whistle frequency is decreasing at rate of 5.00 Hz/s. (c) At what rate is the speed of the train changing?