Newton's first law of motion is discovered by Isaac newton himself (otherwise he won't be associated with the law)
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Sir Isaac newton is credited with first describing what we now call Newton's first law of motion in his work "Philosophiæ Naturalis Principia Mathematica" published in 1687. This law states that an object at rest will remain at rest, and an object in motion will remain in motion with a constant velocity unless acted upon by an external force.
Newton's first law of motion is discovered by Isaac Newton himself (otherwise he won't be associated with the law)
It isn't clear what sort of ghosts you are talking about; but if you already call it "motion", then I don't see why it would NOT be considered motion.
The motion of an object will change when it is acted on by some force. This force will speed it up, slow it down, change its direction of motion or perhaps cause it to spin. All thses changes of motion are response to the force acting on the object. This is Newton's first law: An object in motion will continue in motion (and in the same direction) unless acted on by some force. Some might call this the law of inertia.
The equal force in the opposite direction.
That tendency is called inertia. According to Newton's first law of motion, an object will remain at rest or continue moving in a straight line at a constant speed unless acted upon by an external force.
Discovered land is often referred to as new territory or uncharted territory, especially if it has not been previously explored or documented.