System of forces
- 1. System of Forces “A force system is a collection of forces acting at specified locations. Thus the set of forces shown on any free body diagram make up a force system. Force system is simply a term used to describe a group of forces.” Or When several forces act on a body, then they are called a force system or a system of forces
- 3. •Coplanar forces- Coplanar forces means the forces in a plane. Or a system in which all the forces lie in the same plane, it is known as coplanar force system. •Coplanar Collinear forces - Collinear forces are those forces which have a common line of action, i.e. the line of action of the forces lie along a single straight line either they are push or pull in nature. Examples: two people standing at the opposite ends of a rope and pulling on it. F1 F2 Pull forces acting in a same line or same line of action F1 F5 F2 F3 F4
- 4. •Coplanar Parallel forces- Parallel forces are those forces which are in the same plane but never intersect by each other and they may be same or opposite in direction. F1 F2 •Coplanar Concurrent Forces- Concurrent forces are those forces which are acting at a same point and at a same plane, also they may be pull or push in nature. F2F1 F3F4
- 5. Non-coplanar forces-Non-coplanar forces are those forces which are not acting from a same plane.
- 6. •Non coplanar non- concurrent forces- Non- Coplanar non-concurrent forces are those forces which are not acting at a same point and not at a same plane, also they may be pull or push in nature. •Non-coplanar concurrent forces- Non- Coplanar concurrent forces are those forces which are acting at a same point but not from a same plane, also they may be pull or push in nature. F1 F2 F3 F3 F1 F2
- 7. •Non-coplanar parallel forces- Non-coplanar Parallel forces are those forces which are not in the same plane and never intersect by each other, they may be same or opposite in direction. F2 F3 F1