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question 5
if an object moves with a constant velocity, we can conclude that
a. it is moving toward its natural place.
b. there are no forces acting on it.
c. there is no unbalanced (net) force acting on it.
d. a constant, non - zero acceleration

Explanation:

According to Newton's first - law of motion, an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. When an object has a constant velocity, its acceleration is zero. Since force is related to acceleration by $F = ma$ (where $m$ is mass and $a$ is acceleration), if $a = 0$, then the net force $F_{net}=0$. There could be multiple forces acting on the object, but their vector sum (net force) is zero.

Answer:

C. there is no unbalanced (net) force acting on it.