Posted by **Elisa** on Wednesday, August 6, 2008 at 12:10pm.

A stone is thrown downward into a well with an initial speed of 5.00 m/s. The sound of splash is heard 1.50 s later. Find the depth of the well if the air temperature is 15.0 ˚C?

- physics -
**bobpursley**, Wednesday, August 6, 2008 at 12:26pm
You know the total time.

disance=vo*timedown+1/2 g * timedown^2

NOw, on the wa7 up..

distance=vsound*(1.5-timedown)

set them equal, solve for time down, use the quadratic equation. From that, go to the distance equation and solve for distance.

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