14 Section 2.5 Three-dimensional or Cartesian Vectors Resultant Force s
Question 1 – Determine the resultant force and direction angles
If FB = 600 N and FC = 800 N determine the resultant force and the direction angles of the resultant force acting on the flag pole. Hint – resolve the two vectors into Cartesian or i j k vectors first. You will need to find the unit vectors u AB and u AC.
![Flag pole held down by two ropes](https://pressbooks.bccampus.ca/bcengrphys3/wp-content/uploads/sites/926/2020/02/1170-nourhan-flag-pole-page1-fixed-e1582307423128.jpeg)
Solution
![equations](https://pressbooks.bccampus.ca/bcengrphys3/wp-content/uploads/sites/926/2020/02/h-2-5-Q-1170-solution-page-1-cropped.jpg)
![Solution to the problem](https://pressbooks.bccampus.ca/bcengrphys3/wp-content/uploads/sites/926/2020/02/1170-nourhan-flag-pole-page2-solutions-e1582307490811.jpg)
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