At 1218, on 16 March, you are passing the...

Question 1 of 2707066636eea28f7522a1c51aa7c

At 1218, on 16 March, you are passing the Vicksburg Gage (mile 437.0 AHP). What has been the average current since 0630, 15 March, if you have been making turns for 8.0 mph?

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Question 1 of 27070

At 1218, on 16 March, you are passing the Vicksburg Gage (mile 437.0 AHP). What has been the average current since 0630, 15 March, if you have been making turns for 8.0 mph?

🔍 Key Concepts

• Speed through the water vs. speed made good (SOG) on a river with current • How to compute average speed from total distance traveled and total time • Relationship between vessel’s turns (8.0 mph) and the river’s current (upstream vs. downstream)

💭 Think About

• From 0630, 15 March to 1218, 16 March, how many hours (in decimal form) have actually passed? • Once you know the total elapsed time, what two distances do you need: (1) distance you would have gone in still water at 8.0 mph, and (2) the actual river miles you advanced between the starting mile and mile 437.0 AHP? • How do you express the current as the difference between speed through the water and speed made good over the ground?

✅ Before You Answer

• Be sure you have the correct total elapsed time between the two dates before doing any speed calculations. • Confirm the distance made good in river miles from your starting position to Vicksburg Gage (mile 437.0 AHP). • Check that your final current value is reasonable: it should be much smaller than 8.0 mph and match the sign/direction (helping or opposing) implied by your track.