document.write( "Question 1159874: A boat leaves the dock and travels at 5.5 knots per hour headed East.
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Algebra.Com's Answer #783010 by Alan3354(69443)\"\" \"About 
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A boat leaves the dock and travels at 5.5 knots per hour headed East.
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\n" ); document.write( "knots is a unit of speed, = 1 nm/hour
\n" ); document.write( "--> knots/hr is acceleration, tho not a commonly used unit
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\n" ); document.write( "At the end of 4 hours, the boat's speed is 4*5.5 = 22 knots.
\n" ); document.write( "The average speed is (0+22)/2 = 11 knots
\n" ); document.write( "4*11 = 44 nautical miles.
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\n" ); document.write( "Never seen \"knots/hour\" used before.
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\n" ); document.write( "Flying in Vietnam, we had airspeed in knots, maps in kilometers, altimeters in feet.
\n" ); document.write( "Vertical speed indicators (VSI) in feet/minute.
\n" ); document.write( "And people shooting at us.
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