Remember that a Free-Body Diagram shows only the pertinent forces acting on an object: however, when solving physics problems it is often necessary or beneficial to resolve these vectors into components, usually horizontal and vertical. For our purposes, all the forces will be drawn as if they act on the center of mass of the object. Column one contains the physical representation of a situation. In the second column to the right, draw the free body diagram assuming the forces act on the blank dot provided then resolve these vectors into any horizontal and/or vertical components. Remember the components are not a part of the FBD as prescribed on Advanced Placement Exams but are useful in mathematically solving problems related to forces.