PHYS 141 Chapter Notes - Chapter 1: Projectile Motion
Document Summary
Kinematics is how to describe how things move. To understand motion, we need to comprehend force and acceleration. Motion is the change of an object"s position with time. Translational motion is linear, circular, and projectile motion when an object moves in space. The path of an object"s movement is its trajectory. Motion diagrams track pictures of movement over time. An object represented as mass at a single point is a particle. The particle model of motion simplifies how we would treat motion if all the mass were centered at one point. Negative dispositions shouldn"t be ignored as they are relative to an origin within a time. Vector quantities are a value/magnitude with a direction. Notated as r and a with arrows over the top of them. A triangle symbol means change, can be applied to change in position. Change in r-vector= r vector 1- r vector 2.
