Our goal was to measure the deceleration of a projectile as it passed through some sort of solid medium. For the purposes of data collection, we used chilled apple slices found in the hall refrigerator. Our hypothesis was simply that the BB would slow down as it passed through the apple slice, which was verified by our analysis. We took our photographs using a Fuji S602 with Vivitar 283 flash units, and an Apple 2 plus controlling the timing. Using the basic physics principles of velocity and acceleration, we were able to conclude that the BB does in fact tslow don on its path through the apple slice, by an average of -514000 meters per second squared.