At 2016 your GPS position is LAT 41°07.6'N,...

Question 1 of 29218fork_9b57b1d8f90748829ea

At 2016 your GPS position is LAT 41°07.6'N, LONG 71°37.8'W. At 2128 your GPS position is LAT 41°00.4'N, LONG 71°29.4'W. What was the speed made good between the two positions?

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Question 1 of 29218

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At 2016 your GPS position is LAT 41°07.6'N, LONG 71°37.8'W. At 2128 your GPS position is LAT 41°00.4'N, LONG 71°29.4'W. What was the speed made good between the two positions?

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🔍 Key Concepts

• Speed = Distance / Time – convert the 40-minute interval to hours before using it • How to find distance between two latitude/longitude positions using a plotting sheet or chart scale • Effect of change in latitude vs. longitude at mid-latitudes (1 minute of latitude ≈ 1 nautical mile)

💭 Think About

• First, compute the time run between the two fixes in hours, not minutes • Next, determine how many nautical miles you traveled between the two positions, paying attention to the change in latitude • After finding the distance in nautical miles, divide by the time in hours and compare your result with the multiple-choice options

✅ Before You Answer

• Be sure you are using nautical miles, not statute miles • Confirm that you used minutes of latitude to measure distance on the chart or by calculation • Double-check your time conversion: 40 minutes must be expressed as a decimal of an hour before dividing