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?

Answer 1

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.