A hiker in a canyon calls out “Hello” and hears his echo 2 s later. How far away are the canyon walls?
d = V*t/2.
V = 330 m/s.
To determine the distance to the canyon walls, we can make use of the fact that sound travels at a constant speed in air. The speed of sound in air is approximately 343 meters per second.
Given that the hiker hears his echo 2 seconds after calling out, it means that the sound has traveled from the hiker to the canyon wall and back. Therefore, the total time it took for the sound to travel is 2 seconds.
To calculate the distance, we can use the formula:
distance = speed * time
Plugging in the values, we get:
distance = 343 m/s * 2 s
distance = 686 meters
Therefore, the canyon walls are approximately 686 meters away from the hiker.