A man is at a certain distance from a cliff and he fires a gun and hears an echo after 1.5 seconds then he moves 437.5 away from the cliff and then now he hears the echo after 4 seconds.
find the speed of the sound.
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Answer:
A man standing in front of a vertical cliff fires a gun. He hears the echo after 3 s. On moving closer to the cliff by 82.5 m, he fires again and hears the echo after 2.5 s. Find: (i) the distance of the cliff from the initial position of the man and (ii) the speed of sound.
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