Nothing to do with physics
Well, that seemed ablsoutely pointless. It explained nothing about Newton's 3rd Law of Motion, except it showed a poor understanding to projectile motion and forces. If you got an A+ for that, either you're lying or your teacher is very lenient.
Now, onto the animation. Poorly made, surrounded by a vast collection of imported Jpeg's and uploaded SFX's. To top this all up, it was followed up by poor frame by frame work and simple tweening.
Now I'm aware this was for a school project, but you cannot use that in your defence. This is a website for animations and not a 5 minute job showing little work into science.
Try harder.