Respuesta :
Answer:
velocity
Explanation:
According to Newton's first law of motion, a moving object's velocity remains constant if there were no forces acting on it. If no external, unbalanced force acts on it:
[tex]F_{ext} = m a = 0\\ \Rightarrow a = 0 \\ \Rightarrow \frac{dv}{dt} = 0 \\ \Rightarrow v = constant[/tex]