An observer sitting in the lines of the tanks, watches the flashes of two tanks firing at each other at the same time. He hears the sounds of the two shots 2s and 3.5s after seeing the flashes. If the distance between the two tanks is 510m, find the speed of sound

The time difference between the two tanks is 3.5 - 2 s = 1.5 s (or the sound tanks this much tie to travel between the tanks)

the distance between the two tanks is = 510 m

 

so, the speed of sound would be

s = distance / time

or

s = 510 / 1.5 m/s

thus,

s = 340 m/s

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