Answer:
v = 40 m/s
Explanation:
Given that,
A man stands 80m in front of a cliff face. He makes aloud bang and listens for the echo. He makes a loud bong once every second.
He hears an echo exactly half way between the bang that caused it and the next hang.
Distance = 40 m, t = 1 s
The speed of sound is given by :
[tex]v=\dfrac{d}{t}\\\\v=\dfrac{40\ m}{1\ s}\\\\v=40\ m/s[/tex]
Hence, the speed of sound is equal to 40 m/s.
