Yes, that's true. That's known as "inertia", or "Newton's First Law".
Then the result will be the same as if NO forces act on the object (since the sum of the forces is zero). The object will continue moving in a straight line, at constant speed.
acceleration
unbalanced
By Newton's Second Law, an object with no force on it will continue to move in a straight line with constant velocity.
If there is no net force, the object will stay at rest if it was at rest, or continue moving - at constant velocity - if it was already moving.
It's not necessary to specify that the object is moving at a constant speed. Any object with no outside forces acting on it does that. It also continues moving in a straight line.
If an object is moving away from you and there are no forces acting on it,then it continues moving in a straight line at constant speed.
Then the result will be the same as if NO forces act on the object (since the sum of the forces is zero). The object will continue moving in a straight line, at constant speed.
Yes. The object will simply continue moving at a constant velocity, i.e. at a constant speed in a straight line. This is Newton's First Law.
acceleration
Yes. An object moving in a straight line at constant speed has constant velocity.
... continue to do that, until a force is exerted on it.
Inertia
unbalanced
An object moving at a constant speed in a straight line has an acceleration of 0. An object at rest also has an acceleration of 0. So, the two things I see in common are their accelerations, which are both 0.
By Newton's Second Law, an object with no force on it will continue to move in a straight line with constant velocity.
inertia