According to Newton’s first law of motion, when the net force acting on an object is zero, the object must: have constant velocity.
Newton's First Law of Motion is also referred to as Law of Inertia and it states that a physical object (body) in motion would continue in its state of motion at continuous velocity in the same speed and direction or if at rest, it will remain at rest unless it is acted upon by an external force.
According to Newton's First Law of Motion, an object or body must have constant velocity when the net force acting on it is zero (0) because its acceleration would be zero (0) as well.
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