Chapter summary
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20.4 Techniques of vector addition
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Chapter summary
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A scalar is a physical quantity with magnitude only.
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A vector is a physical quantity with magnitude and direction.
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Vectors may be represented as arrows where the length of the arrow indicates the magnitude and the arrowhead indicates the direction of the vector.
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The direction of a vector can be indicated by referring to another vector or a fixed point (e.g. \(\text{30}\)\(\text{°}\) from the river bank); using a compass (e.g. N \(\text{30}\)\(\text{°}\) W); or bearing (e.g. \(\text{053}\)\(\text{°}\)).
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The resultant vector is the single vector whose effect is the same as the individual vectors acting together.
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20.4 Techniques of vector addition
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End of chapter exercises
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