SOLUTION: Emma walks to her friends hour 190 meters North. They then walk to the park 30 m S. What is Emma's total displacement?

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Question 1155513: Emma walks to her friends hour 190 meters North. They then walk to the park 30 m S. What is Emma's total displacement?

Found 3 solutions by josgarithmetic, Alan3354, ikleyn:
Answer by josgarithmetic(39614) About Me  (Show Source):
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160 meters north

Answer by Alan3354(69443) About Me  (Show Source):
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Emma walks to her friends hour 190 meters North. They then walk to the park 30 m S. What is Emma's total displacement?
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Depends.
Is it 30 m South of her friend's place?
Or 30 m South of Emma's starting point?
Or, is the park 30 m South of ??? what?

Answer by ikleyn(52756) About Me  (Show Source):
You can put this solution on YOUR website!
.
Emma walks to her friends highlight%28cross%28hour%29%29 190 meters North. They then walk to the park 30 m S. What is Emma's total displacement?
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By the definition, displacement is the distance between the starting and ending point.


In this case, this distance is 190 - 30 = 160 meters.


ANSWER.  The displacement is 160 meters in this case.

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Do not miss the displacement with the traveled distance -- these notions/conceptions are different.

The goal of this problem and the goal of my post is to explain this difference to you.