Answer:
sorry I don't get it so pls can u repeat the question .
Movement of any object from one position to another position with respect to the observer is called as Motion. Motion Along a Straight Line: When an object moves along a straight line, the motion of the object is called rectilinear motion. For example; motion of a car on highway.
the calculated frequency is 932 Hz.
Even for sensors positioned at significant track offsets, the computation method integrates three different speed calculation techniques to produce estimates for arbitrary train speeds. The second technique is comparable, but it combines a running rms with a previously created "dominant frequency method." The third technique calculates train speed using regression analysis and an analytical vibration frequency prediction model.
given-
train is travelling at a constant speed. f=(π v/L)
The actual frequency of the note emitted by the train.
By applying Doppler effect,
n'=n( v + vs/ v-vs )
=200( 340+220 / 340-220 )
=200( 560/120)
=932 Hz
Learn more about frequency here-
brainly.com/question/5102661
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