So I'll soon be writing an assigntment on the physics and chemistry behind firework rockets and thats why i'm here! I've already prepared for the chemistry part but when it comes to the physics part then im a bit lost. Bare in mind that i'm supposed to learn something new (myself) and explain that in my assignment, that being said i haven't learned what im about to write about. I thought about aerodynamics on the rocket and i can figure that out on my own but then i thought about the rocket itself and its travel. I thought about calculating the rocket trajectory with fuel and so on. A fireworks rocket of course doesn't go into orbit as it explodes in the end. I've already learned the physics behind projectile motion but it isn't quite the same. As an actual rocket has a motor. My question is, where do i find stuff like this? I've searched around a little bit but i'm a bit confused. Where can i find the formulas for stuff like this?