Question

An object has a negative velocity and a positive acceleration (North +, South −).

Answer 1

This means that the object is moving in the negative direction (South) but its speed is increasing. This could happen if the object is slowing down from a previous positive velocity before changing to a positive velocity. For example, a car traveling North that is slowing down (negative velocity) as it approaches a stop sign before accelerating (positive acceleration) to continue driving North.