Stop Motion Animation of Falling

First I had to plan out what to do. I made a simple plan with the path of action, and then I took reference video of a somewhat heavy ball. I at the time did not have one, so instead I used a somewhat deflated ball as substitute. It appeared to have the same properties of a heavy ball. After planning out. I took a piece of paper and folded a crease on the edge to substitute a ramp. and I used a quarter as the cannon ball. I did several tries with the quarter on the wall, but having to edit my finger out of the way was not the best option. So I tried it out on the floor but my shadow casted over the "stage." I had to wait until it was a cloudy day with ambient lighting to shoot the animation. I had issues trying to get the camera positioned on the same spot, since I didn't have any tripod.