Stan and Ollie are standing next to a train track. Stan puts his ear to the steel track to hear the train coming. He hears the sound of the train whistle through the track 3.1 s before Ollie hears it through the air. How far away is the train? (Use 5,790 m/s as the speed of sound in steel and 343 m/s as the speed of sound in air.)
distance = velocity*time
The Attempt at a Solution
distance-stan = 3.1seconds*5790m/s = 17,949m
distance-olie = 3.1seconds*343 = 1063.5m
Not sure what to do from here. I don't quite understand the concept relationship they're trying to establish...
I tried subtracting Olie's distance from Stan's, but that didn't get me the right answer...