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Krishna Ayyalasomayajula
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\section{Angular Momentum and Rolling Motion}
This unit continues fixed-axis rotational mechanics by extending the work-energy ideas of Unit 5 to rotational kinetic energy and the rotational work-energy theorem. We then introduce angular momentum $\vec{L}$ and angular impulse, emphasizing how torque $\vec{\tau}$ changes rotational motion in the same way that force changes linear momentum.
We next focus on conservation of angular momentum for isolated systems, apply that reasoning to rolling without slipping, and conclude with the AP Physics treatment of circular Newtonian orbits, including orbit speed and energy. Throughout, the emphasis is on fixed-axis rotation, rolling motion, and standard circular orbit results within AP scope.
\input{concepts/mechanics/u6/m6-1-rotational-energy.tex}
\input{concepts/mechanics/u6/m6-2-angular-momentum.tex}
\input{concepts/mechanics/u6/m6-3-angular-momentum-conservation.tex}
\input{concepts/mechanics/u6/m6-4-rolling.tex}
\input{concepts/mechanics/u6/m6-5-orbits.tex}