What is Free Body Diagram?

Free Body Diagram A diagram showing all external forces acting on an object is called "Free Body Diagram" F.B.D. In a specific problem, first, we are required to choose a body and then we find the number of forces acting on it, and all the forces are drawn on the body, considering it as a point mass. The resulting diagram is known as the free body diagram (FBD). For example, if two bodies of masses $m$ and $M$ are in contact and a force $F$ on $M$ is applied from the left fig. (a), the free body...