Posted by **Tiffany** on Sunday, December 5, 2010 at 9:05pm.

The time it takes for an object dropped from the top of cliff A to hit the water in the lake below is twice the time it takes for another object dropped from the top of cliff B to reach the lake. If it takes 2.30 s for the object to fall from cliff A to the water, what are the heights of cliffs A and B?

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