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A person produced a sound with a siren near a cliff and heard echoes after six seconds. Find the distance of the siren from the cliff if the sound wave velocity is $330 m / s$ .

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990 m

880 m

945 m

840 m

answer is A.

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Detailed Solution

The distance of the siren from the cliff if the sound wave velocity is

330 m / s

990 m

.
Give data in problem

v = 330 m / s

t = 6 s

d = \frac{vt}{2}

\Rightarrow d = \frac{330 \times 6}{2}

\Rightarrow d = 990 m

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