A net force of -1,000 Newtons is delivered to the object over a time of .02 seconds. Calculate the new velocity of the object.

The change in velocity (v₂ - v₁) is                  (-20) / (the object's mass).Call it a crazy hunch, but I can't shake the feeling that there was more to the question before the part you copied, that mentioned the object's mass, and its velocity before this force came along.