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Angular Displac ...

Angular Displacement

By Boyang Zhao

Angular displacement is the measured angle when a rigid body rotates about a fixed axis. Angular displacement is positive for the counterclockwise displacement while negative for the clockwise displacement. The SI unit for angular displacement is radian. The radian measure for an angle can be defined as the arc length (from the initial point to the final point of rotation) over the radius of the circle:

\theta=\frac{s}{r}

Other units for angular displacement include degree and revolution.

References and Further Readings
  • Cutnell JD,Johnson KW. 2000. Physics. 5th Edition. (NY): John Wiley & Sons. 1064 p.
Last updated: Wed Aug 30 2006 2:40:21 GMT
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