Applications of Trigonometry to Navigation and Surveying. Section 9-5 (day 2). Terminology:. Nautical mile : Unit of linear measure used in navigation About 15% longer than one mile Knot : Unit of speed used by ships and planes 1 knot = I nautical mile per hour 1 knot = 1.15077854 mph.
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a2 = b2 + c2 – 2bc cos A
A ship proceeds on a course of 110 for two hours at a speed of 20 knots, then changes course to 220 for two more hours. How far is the ship from its starting point?
A ship proceeds on a course of 300° for two hours at a speed of 15 knots, then changes course to 230°, continuing at 15 knots for three more hours. At that time, how far is the ship from its starting point?
Tower T is 8 km northeast of village V. City C is 4 km from T on a bearing of 150° from T. What is the bearing and distance of C from V?
A plane flies on a course of 100° at a speed of 1,000 km/hr.
How far east of its starting point is it after 3 hours?
Often a plot of land is taxed according to its area. Sketch the plot of land described, then find its area.
From a granite post:
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