Flash physics

Can anyone tell me how to make a game like the ones with the cannons that you have a velocity and rotation? I tried just to make a simple ball that follows the path of a parabola, using the equation y(I’m assuming this is the mc’s y) = ax^2(Assuming mc’s x) + bx + c. It’s not working.

Hi I been reading the tutorial, I was wondering how I would make the ball react to walls and floors, like seen a million times before but still new to me, or how to give the gravity an angle (when hitting a wall)or to let the speed you move the mouse letting go of the ball decide how fast it will travel?

sorry know thats a lot, but I understand the code in the tutorial but can’t find the next step to getting a real "interactive " ball …