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 = v²/r

a_r = (r )² / r

a_r = r ²

---

The tangential acceleration a_t and the radial acceleration a_r 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