Question

Anobject experiences a net zero external unbalanced force. Is itpossible for the object to be travellingwith a non-zero velocity? If yes, state the conditions that must beplaced on the magnitude and direction of the velocity. If no, providea reason.

Answer 1

Yes.Even when an object experiences a net zeroexternal unbalanced force, it is possible that the object istravelling with a non-zero velocity. This is possible only when theobject has been moving with a constant velocity in a particulardirection. Then, there is no net unbalanced force applied on thebody. The object will keep moving with a non-zero velocity. To changethe state of motion, a net non-zero external unbalanced force must beapplied on the object.