Question

Specify two differences between internal and external forces

Answer 1

External forces are those which are applied to the element such as beam or column. The dead weight of the construction is either the external force since in the calculation scheme it’s represented as a force applied to the given construction.

The internal forces are forces which occur in construction due to the external forces applied to it. To find external forces in the element the method of sections is usually used.

Answer 2

Internal forces are the forces that emanate from within a system. The system must be defined by you/problem. External forces are theforces that emanate from outside the system. ... Action or reaction force has no difference.