A stone is dropped into a well and the sound of the splash is heard after 3.91 seconds. If the depth of the well is 67.7 meter, find the velocity of sound???

Answer 1

It takes 3.7 seconds to fall 67.7 meters.
So, since time = distance/speed,

So, 3.7 + 67.7/v = 3.91

Answer 2

Bad