A
concurrent force system contains forces whose lines-of action meet at some one
point.
Forces
may be tensile
(pulling).
Forces
may be compressive
(pushing)
Force
exerted on a body has two effects:
- The external effect, which is tendency to change the motion of the body or to develop resisting forces in the body
- The internal effect, which is the tendency to deform the body.
- If the force system acting on a body produces no external effect, the forces are said to be in balance and the body experience no change in motion is said to be in equilibrium. The process of reducing a force system to a simpler equivalent stem is called a reduction. The process of expanding a force or a force system into a less simple equivalent system is called a resolution.
- A force is a vector quantity that, when applied to some rigid body, has a tendency to produce translation (movement in a straight line) or translation and rotation of body. When problems are given, a force may also be referred to as a load or weight.Characteristics of force are the: magnitude,direction(orientation) and point of application.
