A force is a push or a pull. For example, when you push open a door you must apply a force to the door. You also must apply a force to pull open a drawer.

Contact forces are forces that act between two objects which are physically touching each other. What is an example of a contact force? Friction is a good example of a contact force.

Force 2030 was a balanced force, never perfect, but based on the then current demands of an uncertain strategic environment. It was never a force designed to fight a land-based Asian power in the ...