Forces in action
_______________________________________________________________________________________________________________________________________________________________________________________________________________________

2. Force is a vector quantity

Forces are vector quantities, so they are drawn as vector arrows.

 FORCES are caused by the interaction of two objects.

 A free-body diagram shows all the forces acting on just one object.

Forces are represented by arrows. The information they provide is:

 The size of the arrow is proportional to the module, so that the greater the force the longer the arrow.

 The orientation with which the force is applied is the straight line which contains the arrow and the direction is indicated with its point.


A

L

C