At 1919 your position is LAT 37°00.0'N, LONG...

Question 1 / 2707066636eea28f7522a1c51abed

Question 1 of 2707066636eea28f7522a1c51abed

At 1919 your position is LAT 37°00.0'N, LONG 75°30.0'W. At 1950 your position is LAT 36°59.5'N, LONG 75°37.0'W. What is the speed made good?

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Question 1 of 27070

At 1919 your position is LAT 37°00.0'N, LONG 75°30.0'W. At 1950 your position is LAT 36°59.5'N, LONG 75°37.0'W. What is the speed made good?

🔍 Key Concepts

• Latitude/longitude to distance on a Mercator chart • Formula: Speed = Distance / Time • Using the fact that 1 minute of latitude ≈ 1 nautical mile

💭 Think About

• How many minutes of latitude and longitude did you change between the two positions, and which component mainly affects distance on most exam problems? • Once you find the distance in nautical miles, what is the elapsed time in hours between 1919 and 1950? • After you compute Speed = Distance / Time, which answer choice is closest to your result?

✅ Before You Answer

• Be sure you converted the time difference into hours, not minutes. • Check that you measured or computed distance in nautical miles, not in minutes of arc or degrees. • Confirm whether the change in longitude significantly affects distance at this latitude, or if you can focus on the north–south (latitude) change for this type of problem.

Question 1 of 27070

At 1919 your position is LAT 37°00.0'N, LONG 75°30.0'W. At 1950 your position is LAT 36°59.5'N, LONG 75°37.0'W. What is the speed made good?

10.9 knots

5.6 knots

9.1 knots

8.2 knots