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.