Which of Newton's laws is valid in an inertial frame of reference?

Newton's First Law states that a body remains at rest or in uniform motion in a straight line unless and until an unbalanced force acts on it.

The law of inertia is another name for Newton's First Law. Inertia is the property of a body's inability to change its resting position or uniform motion in a straight line. It is only applicable in an inertial frame of reference.

Newton's First Law of Motion describes the state of rest or uniform motion and is only applicable to the Inertial Frame.

Newton's first law is always incorrect in the accelerating frame because an object at rest in an inertial frame can appear to accelerate in a non-inertial frame despite no force acting on it.

As a result, Newton's first law of motion holds true for the inertial frame of reference.