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Jenny walks 30 meters north, 40 meters south, and 20 meters north.  Determine the displacement travelled by Jenny.
in Science by Diamond (53,762 points) | 349 views

1 Answer

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Displacement is a vector quantity hence direction is taken into account. 

Change in displacement = (-40)+ (50)= 10 m  TAKING NORTH AS POSITIVE

therefore the displacement or change in position that Jenny underwent is 20 m to the south.

by Wooden (2,549 points)
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Is it not 30 - 40 + 20 = 10m ?
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Thank you Mr Smuts the question at the top had only two displacement values.yes

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