ELEMENTS OF PHYSICS I
Physics 221

___________________________________________________

CHAPTER 4
Motion and force: dynamics

NEW CONCEPTS

FORMULAS

Newton's first law: if $\vec F = \vec 0$, then the velocity is constant.

Newton's second law:

\begin{displaymath}\vec F = m\vec a\end{displaymath}

Newton's third law:

\begin{displaymath}\vec F_{12} = - \vec F_{21}\end{displaymath}

Weight:

\begin{displaymath}\vec W = m\vec g\end{displaymath}

Friction:

\begin{displaymath}F_{friction} = \mu F_N\end{displaymath}

where $\mu$ is the coefficient of friction and FN is the normal force.

___________________________________________________

<- Back to home page ^ Physics Department

401 Nielsen Physics Bldg., The University of Tennessee, Knoxville, TN 37996-1200, U.S.A.