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We started with a tripod and a PVC tube attached to it. Tube that ran vertically, and the tip was crooked. As we left through a ball rolling and pellet then made on a piece of carbon paper one dot.
If you are the gravitational acceleration g and takes familiar, then you can guess from the drop height from outlet pipe on the basis of the speed at which the bullet leaves calculate how far the ball should come (sx = vt and t tube: sy = 1 / 2 gt 2).
From the difference can be calculated by determining how much energy is lost in friction and air resistance is gone. And that should F w. trajectory length. That job is a near-parabolic and the length does not calculate simple.
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