PCS 120- Midterm Exam Guide - Comprehensive Notes for the exam ( 12 pages long!)
11 Oct 2017
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Document Summary
Together, kinematics and dynamics form the branch of physics known as mechanics. Types of motion: moving in a straight line means constant velocity: motion in a straight line (translation motion, motion in a curved line (projectile moiton, motion in a circular path (circular motion, rational motion. Trajectory: the path along which an object moves. Motion diagram: composite photo showing an object"s position at several equally spaced instants of time. (uniform motion-with constant speed) Coordinate system: it is an official grid we place over problems motion diagaram in order to analize the motion. Orientation of the coordinate system: x and y axis. Time: t=0 and that"s when we start our clock and monitor and object"s motion. Before t=0, object may have moved, but it is our beginning of solving the problem. Independent on the coordinate system and the path travelled. Average speed does not include information about direction of motion. Velocity is a vector and it changes in two ways:
