Kinesiology 3341A/B Lecture 2: 3341 Chapter 1

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 3341A/B
• Professor: Jim Dickey

Document Summary

Vectors: have a magnitude, direction, and point of application (ie. position with direction, displacement, velocity, acceleration with direction) Scalar: only has a magnitude (ie. position, distance, speed, acceleration) Velocity: the rate of change of displacement slope of displacement over time. Once you have the velocity, you can calculate the acceleration (velocity over time) s= d/^t v = s/^t a= ^v/^t: steady speed, rest/stopped, positive acceleration (u, negative acceleration (c) When the slope is positive and constant, the velocity is positive and constant. Where displacement is constant ( at part), the displacement is 0, so the velocity is 0. When the slope is negative and constant, the velocity is negative and constant cannot go instantaneously from 1 velocity to another because there would be in nite acceleration. Displacement is equal to the area under the line. If velocity is constant, displacement will continue at a constant rate. Increasing velocity means that displacement is going to increase dramatically.