Answer: Newton's First Law Of Motion
Step-by-step explanation:
Newton's first law states that the only way for the direction of the object to change, a force must act upon it....This is inertia.
Newton's Second Law of Motion defines the relationship between acceleration, force, and mass.
Newton's Third Law of Motion states that any time a force acts from one object to another, there is an equal force acting back on the original object. If you pull on a rope, therefore, the rope is pulling back on you as well.
Now you can determine which law it is.