Posted by **marlyn** on Saturday, December 5, 2009 at 12:23pm.

im not good in math.

The Grand Canyon is 1600 meters deep at its deepest point; a rock is dropped from the rim above this point. Express the height of the rock as a function of the time t in seconds. How long will it tale the rock to hit the canyon floor?

can someone help me find the answer.

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