What Are the Correct Components of a 20km Displacement at N30°E?

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The discussion clarifies the correct interpretation of the displacement direction N30°E, which means 30 degrees east of north. The components of the boat's 20 km displacement are determined to be 17 km north and 10 km east. A participant initially mixed up the angle, drawing it as 30° north of east, leading to confusion in calculations. By using the correct angle of 60 degrees for calculations, the participant can accurately compute the displacement components. Understanding the directional notation is crucial for solving such vector problems.
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A boat sails in a straight line 20km [N30°E]. What are the components of its displacement to the north and east?

the answers given are 17 km [N] and 10 km [E], but using the formulae
Ay = A Sin σ and Ax = A Cos σ, I've got the values mixed up... could it be because I've drawn it wrong? I've got it drawn as 30° North of East... Does N30°E mean 30° east of north?
 
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hey Bobby,

yes, it does mean 30 degrees east of north. therefore your sigma value is 60 deg instead of 30.
that should fix you :smile:

Beau
 
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