A Rock Is Dropped Into A Well And You Hear It Hit The Water 3.0 S Later. Ignoring Air Resistance, How Far Down Is The Water?

A rock is dropped into a well and you hear it hit the water 3.0 s later. Ignoring air resistance, how far down is the water?

 

Good Day..

Problem:

A rock is dropped into a well and you hear it hit the water 3.0 s later. Ignoring air resistance, how far down is the water?

Answer:

Note: sound wave travels at a speed of approximately 343 m/s

Considering that you hear the sound after 3.0 seconds the moment the stone hit the water. This means the sound created by the stone in hitting the water takes 3.0 seconds to be heard by you. We can solve for distance using the formula distance = velocity × time.

Given:

v (velocity) = 343 m/s

t (time) = 3.0 seconds

d (distance) = ? unknown

Solution:

distance = velocity × time

               = 343 m/s × 3.0 s      (cancel the unit second)

               =  1,029 meters

Answer:

the distance is 1,029 meters

Hope it helps....=)