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A hunter fires a gun and hears an echo from a cliff face 5 s later. He knows the cliff is 850 m away. How fast is the sound travelling where the hunter is
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A hunter fires a gun and hears an echo from a cliff face 5 s later. He knows the cliff is 850 m away. How fast is the sound travelling where the hunter is

User Eric Ly
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1 Answer

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If the cliff is 850m away, the sound travelled there and back which is 850m * 2 = 1700m

The sound took 5 seconds to travel 1700m, so it's moving at 1700m/5s = 340 m/s
User Aleksey Otrubennikov
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