During a Science day learner use a plastic cold drink as a rocket. They use a bicycle pump to increase the pressure inside the bottle. When the pressure becomes high enough, the bottle launched vertically upwards into the air. The bottle returns to its original position after 3 s. What is the maximum height that the bottle reaches?
so it rose for 1.5 seconds, then fell for 1.5 seconds
How far does it fall in 1.5 seconds? 4.9 * 1.5^2 = ____ meters