## the Connection between

## Angular and Linear Quantities

Tangential velocity, v_{t}

Tangential acceleration, a_{t}

Radial acceleration, a_{r},

or centripetal acceleration, a_{c}.

a

_{r}= a_{c}= v^{2}/ra

_{r}= (r )^{2}/ ra

_{r}= r^{2}

The tangential acceleration a_{t}and the radial acceleration a_{r}are two vectorcomponentsof the acceleration;Remember, these are

vectorcomponents and must be addedas vectors!

Rotational KinematicsRotational EnergyReturn to ToC, Ch10, Rotation about a Fixed Axis(c) Doug Davis, 2001; all rights reserved