Define force system. Explain three force systems with sketches.
1 Answer
Answer :
When two or more forces acting on a body, they are said to form a system of forces or force system.
Force systems with sketches:
1. Coplanar Collinear force system: The force system in which forces lies on the same plane and act along the same line of action are known as Coplanar Collinear force system.
2. Coplanar Concurrent force system: The force system in which forces lies on the same plane and meet at a point are known as Coplanar Concurrent force system.
3. Coplanar Non-concurrent force system: The force system in which forces lies on the same plane but meet at different points are known as Coplanar Concurrent force system.
4. Coplanar parallel force system:
(i) Like parallel force system: The force system in which forces lies on the same plane and are parallel to each other acting in same direction are known as Coplanar Like parallel force system.
(ii) Unlike parallel force system: The force system in which forces lies on the same plane and are parallel to each other but acting in opposite direction are known as Coplanar Unlike parallel force system
5. Non-coplanar concurrent force system: The force system in which forces lies in different planes but meet at a point are known as Non-coplanar Concurrent force system.
6. Non-coplanar parallel force system: The force system in which forces lies in different planes but are parallel to each other are known as Non-coplanar parallel force system.
7. General force system: The force system in which forces act in different planes and they do not possess one single point of concurrency are known as General force system.