A rock is dropped into a deep hole and 2.2 s later the sound of striking the bottom is heard. If the speed of sound is 340 m/s, what is the depth of the hole?
see related questions below, and change the numbers as necessary. The key is to separate the 2.2 seconds into the falling time and the return time.
30
To find the depth of the hole, we can use the equation:
distance = speed × time.
In this case, the distance is the depth of the hole, the speed is the speed of sound (340 m/s), and the time is the time it took for the sound to reach the top.
Given that it took 2.2 seconds for the sound to be heard, we can calculate the depth of the hole:
depth = speed × time
depth = 340 m/s × 2.2 s
depth = 748 m
Therefore, the depth of the hole is 748 meters.