6 Questions
If the speed of sound is 330 m/s, how far did the train travel from the place where the rifles were fired to the man who heard the second sound?
5.5 km
If the time difference between the rifle sounds was 11 minutes and 45 seconds, what is the time difference in seconds?
710 seconds
If the man hears the second sound after 11 minutes, how far has he traveled from the place of the rifles in kilometers?
7.28 km
If the speed of sound is 330 m/s, what is the time difference in seconds between the two rifle sounds?
660
What is the distance between the two rifle sound sources, if the train was traveling at a speed of 72 km/h when the man heard the second sound after 11 minutes?
3.6 km
If the speed of sound is 330 m/s, what is the time difference in seconds between the two rifle sounds if a man hears the second sound after 11 minutes?
720
Study Notes
Problem Scenario
- A train is traveling, and rifles are fired at a point along the train's path.
- A man on the train hears two rifle sounds with a time difference of 11 minutes and 45 seconds.
Calculations
- Speed of sound: 330 m/s
- Time difference between rifle sounds: 11 minutes and 45 seconds = 705 seconds ( conversion of time difference to seconds)
- Train speed: 72 km/h (given when the man heard the second sound)
Distance and Time Relationships
- The distance the train travels from the place where the rifles were fired to the man who heard the second sound is unknown and can be calculated.
- The time difference between the two rifle sounds can be calculated using the speed of sound.
- The distance between the two rifle sound sources is unknown and can be calculated.
Test your understanding of train speed and sound with this quiz. Calculate the speed of the train based on the time difference in hearing sounds of fired rifles, considering the speed of sound as 330 m/s.
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