Free Body Diagrams Practice/Examples Use the forces in the box below and label each on your Free Body Diagram (FBD). Contact Forces Field Forces Applied Force = Fae Normal Force = F Friction Force = F, Air Resistance = F Tension Force = F, Spring Force = F, Gravitational Force = F. Electromagnetic Force = FE %3D %3D %3D 1. An apple is hanging from a tree. 6. Your classmate doesn't want to leave class. You apply a force to the right to drag them to lunch. Tension force=fo Applied force=Fapp 7. A dog finds a basket of dog treats and drags them to the left all the way to their dog 2. You drop your phone. house. Graridadtonal Forca=Fg Apphed force= Fapp 3. A bird sitting in a tree. 8. A squirrel is falling from a tree. Normal Forcez Fn Gravitational Force-Fo

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”