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Lecture 2 - General Physics KINEMATICS IN ONE DIMENSION...

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General Physics 8/28/2009 A. Brahmia 1 KINEMATICS IN ONE DIMENSION Kinematics Kinematics is the study of the motion of objects and involves the study of the following concepts: distance, speed, acceleration, and time. In this chapter we will discuss only one dimensional motion (Linear motion). Displacement The displacement ( ) is a vector that points from an object’s initial position toward its final position and has a magnitude that equals the shortest distance between the two positions. x G Δ KINEMATICS IN ONE DIMENSION... Speed The average speed of an object is determined by dividing the distance that the object travels by the time required to travel that distance. The instantaneous speed refers to the speed of an object at a particular point in time. time Elapsed Distance speed Average = V elocity The average velocity of an object is determined by dividing the displacement of the object by the the elapsed time The instantaneous velocity refers to how fast an object moves and the direction of motion at each instant of time.
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