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It is from the math department:
If a ship travels 33 knots per hour, how far will that ship travel per day?
I do believe this question is incorrect as distance would be measure in nautical miles, instead of the implied 792/knots per day.
Have I been out of school too long?
Comments/Debates?
CraigMKE
quote:Originally posted by vivavegas:If a ship travels 33 knots per hour, how far will that ship travel per day?I do believe this question is incorrect as distance would be measure in nautical miles, instead of the implied 792/knots per day.Have I been out of school too long?Comments/Debates?CraigMKE
Here's a definition that seems to support your position (...with thanks to gohaze)
quote: Knots - a measure of speed. It is one nautical mile per hour. Never refer to "knots per hour" unless you want to describe acceleration. A nautical mile is one minute of one degree of LATITUDE and is slightly longer than the ordinary, or statute, mile used in the United States. To convert nautical miles to miles or knots to miles per hour, multiply by 1.15. To convert miles to nautical miles or miles per hour to knots, divide by 1.15.
Never refer to "knots per hour" unless you want to describe acceleration.
A nautical mile is one minute of one degree of LATITUDE and is slightly longer than the ordinary, or statute, mile used in the United States. To convert nautical miles to miles or knots to miles per hour, multiply by 1.15. To convert miles to nautical miles or miles per hour to knots, divide by 1.15.
Here's a more detailed definition:
quote: Knot, in navigation, measure of speed at sea, equal to one nautical mile (6,080 feet in the British admiralty mile; 1,852 m, or 6,076.115 feet, in the international mile) per hour. This is approximately 1.15 statute miles per hour. Thus, a ship moving at 20 knots is traveling as fast as a land vehicle at about 23 miles (37 km) per hour. The term knot probably results from its former use as a length measure on ships' log lines, which were used to measure the speed of a ship through the water (see log). Such a line was marked off at intervals by knots tied in the rope. Each interval, or knot, was about 47 feet (14.3 m) long. When the log was tossed overboard, it remained more or less stationary while its attached log line trailed out from the vessel as the latter moved forward. After 28 seconds had elapsed, the number of knots that had passed overboard was counted. The number of knots that ran out in 28 seconds was roughly the speed of the ship in nautical miles per hour.
Thus, a ship moving at 20 knots is traveling as fast as a land vehicle at about 23 miles (37 km) per hour. The term knot probably results from its former use as a length measure on ships' log lines, which were used to measure the speed of a ship through the water (see log). Such a line was marked off at intervals by knots tied in the rope. Each interval, or knot, was about 47 feet (14.3 m) long. When the log was tossed overboard, it remained more or less stationary while its attached log line trailed out from the vessel as the latter moved forward. After 28 seconds had elapsed, the number of knots that had passed overboard was counted. The number of knots that ran out in 28 seconds was roughly the speed of the ship in nautical miles per hour.
A better phrasing of the question might be "...if a ship maintains a speed of 33 knots for 24 hours how far will it have traveled in a day"
Joe at TravelPage.com
[ 01-13-2004: Message edited by: joe at travelpage ]
Thanks for all the explanations... I knew I could count on this board!
Craig
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