A man is standing between two cliffs and fires a gun. He hears 2 successive echoes after 3s and 5s. find the distance between 2 cliffs?

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Solution

2 * distance = speed of sound * time taken

distance = (speed of sound * time taken)\2

take speed of sound as 330 m/s

distance 1 = (3303)\2
= 495

distance 2 = (3305)\2
= 825

distance b/w the cliffs = distance 1 + distance 2
= 495 + 825
= 1320 m

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A man is standing between two cliffs and fires a gun. He hears 2 successive echoes after 3s and 5s. find the distance between 2 cliffs?

2 * distance = speed of sound * time taken distance = (speed of sound * time taken)\2 take speed of sound as 330 m/s distance 1 = (330*3)\2 = 495 distance 2 = (330*5)\2 = 825 distance b/w the cliffs = distance 1 + distance 2 = 495 + 825 = 1320 m

2 * distance = speed of sound * time taken

distance = (speed of sound * time taken)\2

take speed of sound as 330 m/s

distance 1 = (3303)\2
= 495

distance 2 = (3305)\2
= 825

distance b/w the cliffs = distance 1 + distance 2
= 495 + 825
= 1320 m