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CHAPTER
2 Motion in a Straight Line
Chapter Outline
2.1 Position and Displacement
2.2 AVERAGEVELOCITY
2.3 INSTANTANEOUSVELOCITY
2.4 AVERAGEACCELERATION
2.5 UNIFORMACCELERATION
2.6 DISPLACEMENTDURINGCONSTANTACCELERATION
2.7 ACCELERATIONDUE TOGRAVITY
2.8 REFERENCES
Everything in our universe moves. People, planets, and even galaxies are in constant motion. Physics gives us
ways to explain motion using not only words, but also equations and graphs. This description of motion, called
“kinematics,” involves properties such as position, speed, velocity, and acceleration. In this chapter, you will explore
kinematics in one dimension.