Well... if it travels 343 meters in one second and it takes 3 seconds to reach him....
each second it goes 343 meters.... and it goes for 3 seconds...
A man yell's in a long canyon and waits for the echo to come back to him. It takes 3.0 seconds for him to hear the echo of his yell. The sound has to travel down the canyon and back to reach his ears, and sound travels at 343 m/s. How long is the canyon? (Round to the hundredths place - 2 after the decimal)
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But the canyon is only half that length because it is from the man to the back wall.... so divide your answer in half : )
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