This is the force that causes objects to slow down and eventually stop. Push or pull is also a force that could be acting upon an object. For example if wind is blowing into the sail of a sailboat it would be represented in a free body diagram as a pushing force. On the other hand, if a child has a rope attached to a wagon and is moving it down the street, the force making the wagon move is the force of pulling. The last of the common forces used in creating a free-body diagram is the force of tension .
Tension is the force that results if two forces are pulling on the ends of an object.
Then determine the direction in which each force is acting, as well as the relative magnitude of the force.