After this lesson, you should be able to:

- Represent a Cartesian plane in 2-D as a set of
*x*and*y*axes - Add co-linear vectors, on an x or y axis
- Distinguish between vector and scalar components
- Find the resultant
of*R**R*_{x}and*R*_{y}graphically, using the- tail-to-head method
- tail-to-tail (or parallelogram) method

- Calculate the resultant
of*R**R*_{x}and*R*_{y}using the theorem of Pythagoras - Find the resultant of a number of forces graphically, with the tail-to-head method
- Find the resultant of a number of forces by calculation
- Understand what is a closed vector diagram
- Determine the direction of the resultant using trigonometric functions

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18 lessons in Physics