In this video you are shown the vector triangle for addition and subtraction of vectors in 2 dimensions.

## Worked Examples

I would encourage you to try the following examples as they demonstrate common methods with vectors and act as revision of the topics looked at so far.

### Example 1

### Example 2

Keri ShawSeptember 21, 2016 at 11:38 pmHello, with the final video surely the equation for BA would be -a + b or b – a because of the fact that BA goes positively from B to A and so to get that you would need to go back on a to get -a and forward on b to get +b other wise for the equation a – b to be correct the line would have to be AB or -BA?

Thank you for the videos they are helping me so much with my course.

Stuart SiddersSeptember 22, 2016 at 6:38 amMy answer is correct. You are going from B to A which is given by B to O (-b) followed by O to A (a). So BA = -b + a.

I hope that helps.

TobiasOctober 4, 2016 at 8:15 pmCan you use your videos for first year mechanical engineering degree

Stuart the ExamSolutions GuyOctober 5, 2016 at 10:31 amI can’t see why not if they are on your specification.