An object experiences a net zero external unbalanced force. Is it possible for the object to be moving with a non-$zero$ velocity? If yes, state the conditions that must be placed on the magnitude and direction of velocity. If no, provide a reason.

(A) Yes, it is possible for the object to be moving with a non-$zero$ velocity.
According to Newton's $First$ Law of Motion, an object will continue to be in a state of rest or of uniform motion along a straight line unless acted upon by an unbalanced force.
If the net external unbalanced force is $zero$, the object will maintain its state of motion.
Therefore, the object must move with a constant magnitude (speed) and a constant direction (straight line path) to maintain uniform motion.