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1. A stone is dropped from the top of a well, which is 5000 \(m\) high from the water surface.When is the splash heard at the top? (\(g\) = \(10\)\(m/s²\) and speed of sound(\(v\)) \(=\) 340 \(m/s²\))
 
3801125543_c74cf4e0e1_o.jpg
 
Answer:
Thus, the total time taken by the splash sound to reach the top is  \(s\)
Reference:
https://www.flickr.com/photos/kash_if/3801125543
https://commons.wikimedia.org/wiki/File:Traditional_Well-Kerala.JPG