Definition of Newton's first law of motion

Newton first law state that an object will remain at rest or inform of motion In a straight line unless acted upon by an external force

Newton's first law of motion - sometimes referred to as the law of inertia. Newton's first law of motion is often stated as. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.