Question

1. An object experiences a net zero external unbalanced force. Is
If yes, state the conditions that must be placed on the
it possible for the object to be travelling with a non-zero velocity?
magnitude and direction of the velocity. If no, provide a reason
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Answer 1

Yes, an object may travel with a non zero velocity even when the net external force on it is zero. A raindrop falls down with a constant velocity. The weight of the drop is balanced by the upthrust (upward force) and the velocity of the air .The net force on the drop is zero.