Posted by **eric** on Friday, February 18, 2011 at 2:00pm.

A soccer player kicks a rock horizontally off a 40.0 m high cliff into a pool of water. If the player hears the sound of the splash 3.04 s later, what was the initial speed given to the rock? Assume the speed of sound in air to be 343 m/s.

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**warnu**, Wednesday, December 24, 2014 at 11:27pm
I don¡ät know

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