document.write( "Question 1065804: As a rower passes under a bridge, a bottle of whiskey falls into the water.
\n" ); document.write( "Since it's half-full, it floats.
\n" ); document.write( "The rower doesn't hear it, and continues downstream.
\n" ); document.write( "After 20 minutes, he gets thirsty and looks for the bottle.
\n" ); document.write( "Having sobered some, he figures out that it fell into the water.
\n" ); document.write( "He turns around and rows upstream.
\n" ); document.write( "He finds the bottle 1 mile from the bridge.
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\n" ); document.write( "Find the speed of the current.
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Algebra.Com's Answer #680987 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
A different perspective:
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\n" ); document.write( "The boat and the bottle are in the same medium, the river, so they would stay together if not for the man rowing.
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\n" ); document.write( "Instead of a bridge, envision this happening in open water near a marker, such as a buoy. The bottle stays near the marker.
\n" ); document.write( "The man rows 20 minutes away, so it takes him 20 minutes to row back, 40 minutes total.
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\n" ); document.write( "The bottle in the river moves 1 mile in 40 minutes --> 1.5 mi/hr.
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\n" ); document.write( "Choosing a frame of reference and remembering that \"all motion is relative\" makes it a simple problem.
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