Please help me solve the following problem. A brick is dropped from rest into a well. The sound of the splash is heard 2.40s after the brick is released from rest. How far below the top of the well is the surface of the water? The speed of sound in air is 336 m/s.

Question

Please help me solve the following problem.  A brick is dropped from rest into a well. The sound of the splash is heard 2.40s after the brick is released from rest.  How far below the top of the well is the surface of the water? The speed of sound in air is 336 m/s.

anonymous · Answer

Break the problem into two parts, one where the brick is falling and one where the sound is travelling after the splash.

anonymous · Answer

For the first, x0 (initial postition) is 0 and x is the distance to the bottom, d. v0 = 0. a = 9.8. t = ? v = ?