Arm of Force

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Arm of Force

 

in mechanics. The arm of a force relative to a given point is the shortest distance from the point, or center, to the line of action of the force. In other words, it is the length of the perpendicular dropped from the point to the line of action of the force.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.