When you drop a rock into a well, you hear the splash 2.0 seconds later. How...
When you drop a rock into a well, you hear the splash 2.0 seconds later.
How deep is the well?
If the depth of the well were doubled, would the time required to hear the splash be greater than, less than, or equal to 4.0 seconds? Please explain why
Homework Answers
Let us assume that the depth of well is H.
Initial velocity u = 0.
Also let us assume downward to be positive.
Using second kinematical equation: 
Now if the depth of well is doubled, i.e. it is made 39.2 m,
Again using the same kinematical equation,
Hence 
Add Answer to:
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