A gun is sounded and an echo received from a wall 6 seconds later. If the speed of sound is 330m/s, how far away is the wall?

Phil Carson asked Nov 28, 2022

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6 votes

A gun is sounded and an echo received from a wall 6 seconds later. If the speed of sound is 330m/s, how far away is

the wall?

Phil Carson asked Nov 28, 2022

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15 votes

Answer:

Neither the source or wall is moving so the sound takes 3 sec to get to the wall and 3 sec to return

D = 3 * v = 330 m/s * 3 sec = 990 m

Red Orca answered Dec 5, 2022

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