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mathematicsprinted 132 · PDF 133
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printed 132 · PDF 133
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132
Adding two vectors is defined geometrically, like this:
Subtracting one vector from another is thought of as adding a negative vector
a – b = a + (-b)
When vectors are represented as column vectors, adding or subtracting is simply a
matter of adding or subtracting the vectors’ x and y coordinates
What is the magnitude or modulus of a vector?
This depends on the use of the vector
For velocity, magnitude would be speed
For a force, magnitude would be the strength of the force (in Newtons)