Maya follows a maze by going: 3 m north, 2 m west, 1 m south, 1 m west, 2 m north, 6 m east, and 2 m north. What is her final displacement in a north/south direction.

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  1. north:
    3 -1 +2 +2

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  2. Disp. = 3i - 2 -1i - 1 + 2i + 6 + 2i.
    Combine like-terms:
    Disp. = 3 + 6i = 6.71m[63.4o].

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