Solved: A railroad train is traveling at 30.0 m/s in still

Chapter 16, Problem 50E

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QUESTION:

A railroad train is traveling at 30.0 m/s in still air. The frequency of the note emitted by the train whistle is 262 Hz. What frequency is heard by a passenger on a train moving in the opposite direction to the first at 18.0 m/s and (a) approaching the first and (b) receding from the first?

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QUESTION:

A railroad train is traveling at 30.0 m/s in still air. The frequency of the note emitted by the train whistle is 262 Hz. What frequency is heard by a passenger on a train moving in the opposite direction to the first at 18.0 m/s and (a) approaching the first and (b) receding from the first?

ANSWER:

Solution 50 E

Step 1 :

In this question we need to find the frequency of the sound heard by the passenger in opposite direction with speed

When he is approaching to first

When he is receding from the first

Data given

Velocity of passenger

Velocity of sound in air is

Velocity of source

Hence we have the velocity of the passenger with respect source

        

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