I'm building a catapult meant to fire a plastic ball as far as possible with the following items: 36 popsicle sticks, glue, 6 rubber bands, 4 clothes pins, a small stryofoam cup, and 4 feet of string. The ball has a radius of just under an inch, and it is very light. I am not meant to modify the ball in any way. I have heard that to counter wind resistance you should aim it at a higher angle, maybe 50 rather than 45. Since it is so light, as in not dense, how much increase in angle should I compensate with? Also I was wondering if anyone knew a proper, feasible way to make the ball travel a greater distance that won't comprimise the integrity of my catapult. I can upload a diagram of my catapult if necessary.