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Resultant displacement of vectors

  • Thread starter Coco12
  • Start date
  • #1
272
0

Homework Statement


Find the resultant displacement(magnitude and direction of the following vectors: 12.3m North, 45.6m East, 78.9m West, 14.7m South


Homework Equations



c=sqrt a^2 + b^2

The Attempt at a Solution


Do you just add the vectors so the north and south added together will give you 2.4m, etc then use Tan inverse to get the angle? when I did that... I got 33.4m for the magnitude and 85.9 degrees for the direction , however do you need to minus that from 270 to get 184.1 degrees? Am i doing this right?
 

Answers and Replies

  • #2
64
1
Draw a diagram and show us
 
  • #3
272
0
Draw a diagram and show us
i just drew it on a cartesian plane so it is in the third quadrant.. the y axis is -2.4m and the x axis is -33.3m I got those numbers from adding the directions together.
 

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