Physics 197 Lecture Notes - Lecture 2: Point Particle, One Direction
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Physics 197-lecture 2-intro to kinematics in one dimension. If the dots representing an object are not equally spaced, there must be some acceleration: example: an ice hockey player is gliding along at a constant velocity when he starts to slide, coming to a stop. If velocity and acceleration are pointing in the same direction, an object is speeding up. If velocity and acceleration are pointing in opposite directions, an object is slowing down: example: you are late trying to catch a train leaving the station. When you arrive at the platform, the train is just departing 30 m ahead of you. You can run at a maximum speed of 8 m/s, and the train has a constant acceleration of 0. 8 m/s2. You can run 50 m along the platform until you hit a barrier. Will you catch the train: model: person and train are point particles, reaching the back of the train =
