An object at rest will stay at rest and an object in motion will stay in motion at a constant speed and in the same direction, u
nless acted on by an unbalanced force.” The statement above is Newton’s first hypothesis of motion because it makes a prediction. theory of motion because it is a widely accepted explanation. law of motion because it is a factual statement based on observations. explanation of motion because it is widely accepted and based on observations.
The statement that 'an object at rest will continue to stay at rest and an object in motion will stay in motion in same direction and at constant speed unless some external force acts on the object' is a law of motion. This statement describes a fact which is base don the observations made by Newton. It is universally true and hence, it is not a hypothesis, or theory but a law.
Hence, the correct answer is 'law of motion because it is factual and based on observations'.
