Final answer:
Newton's 1st law is also called the law of inertia. It states that an object at rest will remain at rest, and an object in motion will continue moving in a straight line at a constant velocity, unless acted upon by an external force.
Step-by-step explanation:
Newton's 1st law is also called the law of inertia. It states that an object at rest will remain at rest, and an object in motion will continue moving in a straight line at a constant velocity, unless acted upon by an external force.
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