(e.g., the x-axis) Examples - sprinter running 100 meters in a straight line - ball falling straight down, and bouncing back up Physics 1D03 - Lecture 2 * 1-D motion can be described by scalars (real numbers with units) as functions of time: The sign (positive or negative) keeps ...
Physics1D03-Lecture2 2 •Kinematics:thedescriptionofmotion•Onedimension:motionalongastraight line(e.g.,thex-axis)Examples-sprinterrunning100metersinastraightline-ballfallingstraightdown,andbouncingbackup Physics1D03-Lecture2 3 1-Dmotioncanbedescribedbyscalars(realnumberswithunits)asfunctionsoftime:Position...
Physics 1D03 - Lecture 2 4 Displacement : xx2x1 x x2 x x1 t t1 t2 position x as a function of time t t Average velocity : v x/ t(slope of the line) Physics 1D03 - Lecture 2 5 Instantaneous velocity is the average over an ‘infinitesimal’ time interval : t2 t1, t 0an xd...