An air-filled party balloon is kept motionless several metres above the ground. The balloon is then released in still air. Which statement best describes how the balloon moves from the instant it is released until just before it reaches the floor?
- AThe balloon decelerates continuously.
- BThe balloon falls at a constant speed and then decelerates.
- CThe balloon falls at a constant speed.
- DThe balloon initially accelerates and then reaches a constant speed.