Question
A man walks one mile east, then he walks one mile northeast and then he walks one mile east. How far is he from his initial position?
Answers
Consider east = +x, North = +y
(1,0) + (.707,.701) + (1,0)
=(2.707,0.707)
distance = 7.828
(1,0) + (.707,.701) + (1,0)
=(2.707,0.707)
distance = 7.828
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