Suppose a man stands at a distance from a cliff and claps his hands . He receives an echo from the cliff after 4 second . Calculate the distance between the man and the cliff . Assume the speed of sound to be 343 m s^(-1)

Suppose a man stands at a distance from a cliff and claps his hands .

1.	Suppose a man stands at a distance from a cliff and claps his hands . He receives an echo from the cliff after 4 second . Calculate the distance between the man and the cliff . Assume the speed of sound to be 343 m s^(-1)
Answer» Solution :The time taken by the SOUND to come back as echo is `2t = 4 IMPLIES t = 2S ` `therefore` The distance is d = vt (`343 m s^(-1)) (2s)` = 686 m