FBD stands for Free Body Diagram. It is a graphical representation of the forces acting on an object. It is important because it helps us understand and analyze the motion of an object by isolating the forces acting on it.
To draw a FBD, first identify the object and all the forces acting on it. Then, draw a dot to represent the object and draw arrows to represent each force, labeling them with their magnitude and direction. Make sure to include all external forces such as gravity, friction, and applied forces.
All the forces acting on the object should be included in a FBD. This includes external forces such as gravity and normal force, as well as internal forces such as tension or compression. It is important to include all forces to accurately analyze the motion of the object.
The direction of the forces in a FBD should be based on the direction in which the force is acting on the object. For example, if gravity is pulling the object down towards the ground, the arrow representing gravity should point downwards.
No, fictitious forces should not be included in a FBD. Fictitious forces, also known as inertial forces, are not actual forces but rather appear due to acceleration or non-inertial reference frames. Only actual forces should be included in a FBD.