home *** CD-ROM | disk | FTP | other *** search
- Torque is defined as the product of a force and its
- perpendicular distance, or lever arm, to a pivot point.
- Mathematically
-
-
-
- An object may have no net acceleration of its center of
- mass, but if there is a net torque, the object will rotate
- around the pivot point. What the pivot point is for any
- particular problem is irrelevant; the pivot point can be
- chosen to simplify the calculations. The same answer will
- be found regardless of which pivot point is chosen. By
- convention, a rotation in the counterclockwise direction
- is called positive, while a rotation in the clockwise
- direction is called negative. Since torque is the product
- of force and distance, an object may be subjected to 0
- torque if either the force acting on the object is 0 or if
- the force is acting at 0 distance from the pivot point.
- Torque is measured in units of Newton-meters.
-
-