When the skydiver is falling at a constant velocity after the parachute is open, what is their acceleration?

Once the parachute is opened, the air resistance overwhelms the downward force of gravity. The net force and the acceleration on the falling skydiver is upward. ... The skydiver thus slows down. As the speed decreases, the amount of air resistance also decreases until once more the skydiver reaches a terminal velocity.

since electrons are negative the answer is neagtaive