a man fires a shot in front of a cliff and hear the echo after 3 second calculate the distance of a man from the click if velocity of sound in air is 340 m/s.
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Time taken = 3s
Velocity of sound = 340m/s
Distance covered by the sound =vt = 340×3 = 1020m
Distance between the man and the cliff = 1020/2 = 510m
(we divide the total distance travelled by 2 cause the sound travelled the distance twice as in reaching the cliff and then returning back to the man)
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