There are some laws of physics that have to do with motion. For example Newton's first law of motion states that objects or will stay unless acted upon by .

Newton's first law of motion states that objects state of rest or uniform motion will stay unless acted upon by an external force

Explanation:

Newton's first law of motion is also called the Law of Inertia. Because, it describes the property of inertia of the body. Newton's First Law states that every object continues its state of rest or uniform motion, until or unless it is acted upon by an external force. It means that if an object is in state of rest, it will remain at rest until or unless an external force is not applied to it. Same goes for the state of uniform motion. Hence, the answer will be:

Newton's first law of motion states that objects state of rest or uniform motion will stay unless acted upon by an external force

Newton's first law of motion states that objects at rest or in motion will stay unless acted upon by a net external force.

Explanation:

Motion is typically described in terms of velocity, acceleration, displacement and time. An object's velocity cannot change unless it is acted upon by a force, as described by Newton's first law also known as inertia. More generally, the term motion signifies any spatial and or temporal change in a physical system.

Many scientists have studied motion and it's properties because of its importance to life. The Italian, Galileo Galile, who lived from 1564 to 1642, did the first systematic study of motion. Also Sir Issac Newton did more detailed work on the study of motion. In his works in motion he came about three different laws.

- Newton's first law: This states that objects at rest or in motion will stay unless acted upon by a net external force.

-- Newton's second law: This states that the force on an object is equal to its mass times its acceleration.

- Newton's third law: This states that for every action there is an equal and opposite reaction.

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