Projectile and Rocket

The JC1 have received their results but not their posting. So most of them don't have much mood to study. Rather, I am having mood to have some fun. So I borrowed some rockets from my colleagues and the results - rocket shooting.

Well, to be politically correct, that is a lesson on 2 dimensional kinematics; pressured gas; Newton's 2nd Law, without the mass being constant; Newton's 3rd law in recoil... sound chim right?!?!? Actually it's just plain, pure, physics fun.

Ops, need to alter the angle of projection.

Up and away, so fast and far, I can only capture the trail of the water.

All this being said ... hope the students can apply all these concepts in the pen and paper test.
Meanwhile, the fun continues...