Question

an object experiences a net zero external unbalanced force, is it possible for the object to be traveling with a non-zero velocity? if yes, state conditions that must be placed on the magnitude and directions of the velocity. if no provide the reasons
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Answer 1

Answer:

Yes, an object may travel with a non-zero velocity even when the net external force on it is zero. An object moving in some direction with constant velocity will continue in its state of motion as long as there are no external unbalanced forces acting on it. In order to change the motion of the object, some external unbalanced force must act upon it.

A raindrop falls down with a constant velocity. The weight of the drop is balanced by the up thrust and the velocity of air. The net force on the drop is zero.

Answer 2

Answer:

Yes, when an object experiences a net zero external unbalanced force, it is possible for the object to be travelling with a non-zero velocity. This can happen under the following conditions :

(a) The object should already be travelling with a uniform speed in a straight line path.

(b) There should be no change in the magnitude of speed.

(c) There should be no change in the direction of motion.

(d) The friction between the object and the ground must be zero.

(e) The air resistance on the moving object must also be zero.

Explanation:

Hope it helps ( ╹▽╹ )