Separating Bodies: |
Identify forces acting on a subset of a system of bodies |
Newton's 3rd Law: |
Forces between two contacting bodies must be equal
and opposite. |
Static Equivalence:
|
Static equivalence between forces, couples and combinations. |
Roller: |
Direction of force between the roller and the rolled surface. |
Slot:
|
Direction of force between pin and slot of a member. |
Negligible Friction: |
Direction of force between frictionless bodies in point contact |
Representation: |
Representing unknown loads at various connections. |
Friction:
|
Sorting out implications of equilibrium and Coulomb’s
Law on friction force. |
Equilibrium: |
Consideration of both force and moment balance in equilibrium. |
