Asked by Jeremy Bearimy

chun hua is going on a hike around town. she starts at the top left corner of square 36. she walks 7.0 km west, 4.0 km north and then 4.0 km east. what is her final displacement
Answered by oobleck
relative to her starting point, she ends up at
<-7,0> + <0,4> + <4,0> = <-3,4>
Answered by henry2,
Disp. =-7+4i+4 = -3 + 4i = 5km[-36.9o] = 5km[36.9o] W. of N.(323.1o CW).
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