Boat Positioning: Lorraine and Jeff's Displacement in Race - Homework Question

AI Thread Summary
Lorraine and Jeff's boat positions are determined after they navigate different routes from the same harbor point. Lorraine travels 500 m east and then 300 m north, while Jeff goes 300 m north and then 500 m east. Jeff's boat is positioned west of Lorraine's boat, and when racing back, they would head southwest. The discussion highlights the need for precise compass headings, with calculations suggesting an angle of approximately 31 degrees. Understanding the compass system is crucial for accurate navigation and reporting.
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Homework Statement



Lorraine steered her boat out of the harbor, heading east. She traveled 500 m to one buoy and then turned north and headed 300 m to another buoy. Jeff also left the harbor from the same point, and traveled 300 m [N] to a buoy, and then went 500 m [E].
a) What is the position of Jeff's boat relative to Lorraine's boat after they finish moving?
b) If Lorraine and Jeff race straight back, in what direction are they headed?[/B]

Homework Equations

The Attempt at a Solution


Okay, for letter a, I was a bit confused because are they not in the same position? They end up in the same place. But I guess technically Jeff's position would be west relative to Lorraine's boat?
For letter b, I said southwest, because they first go north east. Correct or not?

Thanks for your help :)[/B]
 
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Rasofia said:
technically Jeff's position would be west relative to Lorraine's boat?
Unless he rammed her and one or both boats sank.
SW is good. There is a possibility that they want a compass heading in degrees. Remember enough trig to calculate that?
 
Bystander said:
Unless he rammed her and one or both boats sank.
SW is good. There is a possibility that they want a compass heading in degrees. Remember enough trig to calculate that?

I used tangent inverse (y/x) and got around 31 degrees so maybe that's it?
I don't really know if that would be the right equation for this though.
 
Rasofia said:
be the right equation for this though.
That's perfectly good. Compass headings for mariners start with 0 degrees at due north, proceed clockwise through 90 (E), 180 (S), 270 (W), and back to 360 (a full circle) reset to 0 (N). So you've got 270 - 31 rather than 225 which would be a nitpicker's SW. Hand them the number and SW or WSW and you are in business.
 
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