Posted by **reddy22** on Tuesday, May 7, 2013 at 5:28pm.

Two trains are moving in opposite diections on parallel tracks and are appoaching a station. Horns on both trains are producing sound of frequency of 500Hz. One train is approaching at 32m/sec. What is the speed of the other train if an observer at the station hears a beat frequency of 4.4Hz.

- physics -
**Redgy22**, Tuesday, May 7, 2013 at 9:53pm
29.5m/sec

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