Question

an object in motion will stay in motion unless acted upon by an unbalanced force, or an object at rest will stay at rest unless acted upon by an unbalanced force. newtons 2nd law of motion newtons 3rd law of motion newtons 1st law of motion

Explanation:

The statement "An object in motion will stay in motion unless acted upon by an unbalanced force, or an object at rest will stay at rest unless acted upon by an unbalanced force" is the definition of Newton's 1st Law of Motion. This law is also known as the law of inertia. Inertia is the tendency of an object to resist changes in its state of motion.

Answer:

Newton's 1st Law of Motion