Homework Help: Physics

Posted by Anon14 on Saturday, September 10, 2011 at 3:55pm.

A rock is dropped from a tree of height 36.5 m into a lake (depth 9 m) below. After entering the water, the rock then floats gently down through the water at a speed of 12.5 m/s to the bottom of the lake. What is the total elapsed time?

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