A stone is dropped into a well and the report of the stone striking the bottom is heard 7.7 seconds after it is dropped. | MATHalino

A stone is dropped into a well and the report of the stone striking the bottom is heard 7.7 seconds after it is dropped. Assume that the stone falls 16t² feet in t seconds and that the velocity of sound is 1,120 feet per second. The depth of the well is:

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