\(\def \u#1{\,\mathrm{#1}}\)
\(\def \abs#1{\left|#1\right|}\)
\(\def \ast{*}\)
\(\def \deg{^{\circ}}\)
\(\def \tau{\uptau}\)
\(\def \ten#1{\times 10^{#1}}\)
\(\def \redcancel#1{{\color{red}\cancel{#1}}}\)
\(\def \BLUE#1{{\color{blue} #1}}\)
\(\def \RED#1{{\color{red} #1}}\)
\(\def \PURPLE#1{{\color{purple} #1}}\)
\(\def \th#1,#2{#1,\!#2}\)
\(\def \lshift#1#2{\underset{\Leftarrow\atop{#2}}#1}}\)
\(\def \rshift#1#2{\underset{\Rightarrow\atop{#2}}#1}}\)
\(\def \dotspot{{\color{lightgray}{\circ}}}\)
\(\def \ccw{\circlearrowleft}\)
\(\def \cw{\circlearrowright}\)

How Things Move

Why Things Move

conserved

\(E_f=E_i+\Delta E\)

work

- Work (\(W\))
*measured in* J \(W=Fd\cos\theta\)

\(E_f=E_i+W\)

kinetic energy

- Kinetic Energy (\(E_K\))
*measured in* J \(E_K=\frac12mv^2\)

elastic

inelastic

maximally inelastic

intensity

- Intensity (\(I\))
*measured in* W/m^{2} \(I={P\over A}\)