At 1300, 5 January, the river will be...

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Question 1 of 2066636eea28f7522a1c51aaa5

At 1300, 5 January, the river will be temporarily closed to navigation for six hours at mile 531.3 AHP due to repairs to a bridge. What minimum speed over the ground must you make from Natchez Gage in order not to be delayed?

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🔍 Key Concepts

• Speed = Distance / Time relationship using statute miles and miles per hour (mph) on Western Rivers • Understanding river mile markings (AHP – Above Head of Passes) and how to get the distance from Natchez Gage to mile 531.3 AHP • Interpreting the closure window (starts at 1300, lasts six hours) to find how much time you actually have available

💭 Think About

• How many statute miles is it from Natchez Gage to mile 531.3 AHP, according to your river mileage table/chart? • If the river closes at 1300, what is the latest time you could pass mile 531.3 AHP without delay, and how much time is that from your starting time? • Once you know the distance and available time, what speed over the ground in mph do you get when you apply Speed = Distance / Time, and which choice is just high enough to meet or exceed that value?

✅ Before You Answer

• Make sure you are using statute miles and mph, not nautical miles and knots • Confirm you are using the correct river miles for Natchez Gage and mile 531.3 AHP from the same reference table • After computing the required speed, pick the smallest answer choice that is equal to or greater than your calculated speed so you are not delayed

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