PHYS126 Lecture 1: vector quantity
21 Jan 2019
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A vector quantity both magnitude and direction. is defined as a physical quantity that is fully described by. In this case, magnitude represents the strength or length of the physical quantity where as direction stands for where the body/physical quantity is directed i. e. north, south, Vectors can be graphically represented by directed line segments. The length line is chosen, on the basis of some scale of measurement, to represent the magnitude/size of the vector, and the direction of the directed line segment represents the direction of the vector. The followings are the examples of vector quantity. The man dragged the box on the ground over the distance of 2m from the left to the right (from the point a to the point b) within 5s by applying 6n of the force. Displacement is represented by: 2m to the right. Velocity is represented by: 2m/5s or 0. 4m/s to the right. Force is represented by: 6n applied to drag the box.
