Inertia

=Inertia - According too this website this is part of the law, every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it. Also the other part of the Law states that an object at rest stays at rest unless of course an external force is applied to it. Without inertia we could barely do anything because without the thing pushing back we would not accomplish anything. Friction is the reason why everything usually stops when friction is created by like rubbing an object it creates friction wich could slow something down.=