Basic Visualization : Free Body Diagram - simphysoftwares/SimPHY-docs GitHub Wiki

A Free Body Diagram (FBD), or Force Diagram, for an object or a system of masses, represents all the forces acting on the body. This tool in the visualization toolbar is essential for understanding the body’s motion. To view the FBD for a system of masses, select multiple bodies by holding Ctrl while dragging with the left mouse button, or by grouping the bodies via right-click.