Downward acceleration, or a positive.

Downward, positive acceleration.

The object that we used was a coffee filter. We used this because it is and easy object to see and use for this particular project. When we dropped it, it started slow and gradually increased a little bit untill it hit the ground.

To create this photo, we changed the settings on the camera so we could get a longer shot to catch the object slowly falling. We also chaged the shot speed so we could see it fall.