Engineering Science 1022A/B/Y Lecture Notes - Lecture 2: Unit Vector, Trigonometric Functions

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Any positive/negative physical quantity that is specified by magnitude. Any physical quantity that requires both magnitude and direction. Representing a push or a pull along the vector axis. Direction is indicated by the angle between a reference axis and the arrow"s line of action. Sense is indicated by the arrowhead (one of two possible directions) Distance along vector axis to a point, relative to the origin. Relative distance along the vector axis between two points. Points in the same direction as the original vector.

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