Shooting Jell-O
by: Logan Couce, Alia Whitney-Johnson, Brittany Spencer
May, 2004
Abstract
Our goal in this project was to quantitatively measure the change in velocity over time of a pellet when fired through frozen Jell-O. Our hypothesis was that firing though the Jell-O medium would cause the pellet to decelerate. We used a Crosman BB rifle on a stand firing though a piece of Jell-O. We used a sound trigger with computer interface to set off four flashes by a set interval. These four flashes would illuminate the BB at different times so that we could use scale measurements to determine the velocity of the BB before and after passing through the Jell-O, and from this we could determine the deceleration. Our results were that, on average, the pellet decelerated by 1.0 *105 m/s2.
