At 1010 your vessel passes close abeam to Buoy "NCB" in the inbound traffic lane. At this time the Chesapeake Bay Pilot informs you that he will not board your vessel until 1100. The pilot boat is located 1.5 miles northeast of Cape Henry Light. What should you reduce your speed to in order to arrive at the pilot boat at this time?
• Time-Speed-Distance formula: ( \text{Speed} = \frac{\text{Distance}}{\text{Time}} ) and how to rearrange it • How to convert minutes to hours correctly when using knots • Understanding where you start (Buoy "NCB") and where you must end (pilot boat 1.5 miles NE of Cape Henry Light) at a specified time
• How much time (in hours) do you actually have between passing Buoy "NCB" at 1010 and meeting the pilot at 1100? • Once you know the total distance from Buoy "NCB" to the pilot boat, how do you combine that with your available time to find the required speed? • Do the answer choices make sense for the distance you’d expect to cover in about an hour in a traffic lane near Cape Henry?
• Be sure you have the correct total distance from Buoy "NCB" to the pilot boat’s position, not just to Cape Henry Light. • Confirm that your time is expressed in hours before plugging into the speed formula (e.g., 50 minutes vs 0.83 hours). • After you compute speed, check if it is reasonable for a large vessel in a traffic lane and close to one of the given answer choices.
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