Posted by **Anonymous** on Thursday, May 23, 2013 at 11:21pm.

You are in a fast powerboat that is capable of a sustained steady speed of 21.0 in still water. On a swift, straight section of a river you travel parallel to the bank of the river. You note that you take 16.1 to go between two trees on the riverbank that are 490 apart.\

Determine its speed

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