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A quantity can either be a vector or a scalar.
A scalar has magnitude only, however a vector has both magnitude and direction.
For example,
5 meters is a scalar as it only provides a magnitude. However, if we said 30 meters per second, North, this would be considered a vector. It provides both magnitude and direction.

A vector can be represented by OA, a or a.

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Some examples as well as representing a vector on a graph

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Questions to try and vectors as a translation.

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More on translation of vectors as well as working backwards to get back to the starting point of a vector. Both the graphical calculation and the non-graphical calculation using matrices.