SOLUTION: if you drop a stone into a well, it takes 6 seconds until you hear the splash. How deep is the well?

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Question 700119: if you drop a stone into a well, it takes 6 seconds until you hear the splash. How deep is the well?
Found 2 solutions by solver91311, Alan3354:
Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!


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Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
if you drop a stone into a well, it takes 6 seconds until you hear the splash. How deep is the well?
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The speed of sound is very small compared to the time taken to hit the surface of the water. Since you didn't spec a temperature of the ambient air or any equation to use for the time for the sound to travel:
s = -16t^2 = -16*36 = -576 feet
s = -4.9t^2 = -4.9*36 = -176.4 meters
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