A man fires a shot and hears an echo from a cliff after 2 seconds. He walks 85 m towards the cliff and echo of a second shot is now heard after \[1.5\]second. What is the velocity of sound?

A man fires a shot and hears an echo from a cliff after 2 seconds. He

1.	A man fires a shot and hears an echo from a cliff after 2 seconds. He walks 85 m towards the cliff and echo of a second shot is now heard after \[1.5\]second. What is the velocity of sound?
A.	85 m/sec
B.	170 m/sec
C.	340 m/sec
D.	680 m/sec
Answer» D. 680 m/sec

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A man fires a shot and hears an echo from a cliff after 2 seconds. He walks 85 m towards the cliff and echo of a second shot is now heard after \[1.5\]second. What is the velocity of sound?

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