Homework Help: physics

Posted by Student in Need on Wednesday, March 9, 2011 at 11:46pm.

A sailor strikes the side of her ship just below the waterline. She hears the echo of the sound reflected from the ocean floor directly below 2.00 s later. How deep is the ocean at this point? (Assume the velocity of sound in water is 1560 m/s, and enter your answer in meters; if you think the answer is 1000 m enter 1000.)
No clue how to do this.

physics - drwls, Thursday, March 10, 2011 at 7:04am
2.00 s is the round trip tinme for the sound. She must have very good ears, unless she is using sonar equipment.

Vsound*(2.00 s) = 2*(depth)
= 3120 m
depth = 1560 m

enter 1560

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