1. The graphs below show the height vs. time (teal), velocity vs. time (green), and acceleration vs. time (blue) for a shuttlecock. Which statement is true?
A. The shuttlecock began 7 meters above the ground, and fell through a vacuum.
B. The shuttlecock began 3.5 meters above the ground, and fell through a vacuum.
c. The shuttlecock began 7 meters above the ground, and fell through thick air.
D. The shuttlecock began 3.5 meters above the ground, and fell through thick air.