the Connection between
Angular and Linear Quantities
Tangential velocity, vt
Tangential acceleration, at
Radial acceleration, ar,
or centripetal acceleration, ac.
ar = ac = v2/r
ar = (r )2 / r
ar = r 2
The tangential acceleration at and the radial acceleration ar are two vector components of the acceleration;
Remember, these are vector components and must be added as vectors!
Rotational Kinematics Rotational Energy Return to ToC, Ch10, Rotation about a Fixed Axis (c) Doug Davis, 2001; all rights reserved