I'm pretty new to this forum but have loved sciences if all kinds since I was young and plan to get into nuclear engineering after high school. Back on topic, I have made a rocket launcher out of pvc pipe that is powered by an air compressor. Ranging from 60-120 psi propelling my paper rocket. Since I'm often bored after school, how can I determine the air resistance and drag coefficient and well the maximum speed it reaches when propelled with 100psi. I know it'll be hard because I have to take into account gravity and air resistance and friction and the force that the 100psi hits it at but anyone who knows this stuff wanna help me please?