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exper 6 - Blackwood Ballistic Pendulum Brianna Przybysz...

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Blackwood Ballistic Pendulum Brianna Przybysz Submission Date: October 1, 2007 Instructor: Mr.Leach Phys 1113 E Cody Miller, A’Dante M c Kinnon This experiment was conducted in order to determine the muzzle velocity using two different methods, and to use that information to calculate the energy lost in the collision of the ball and pendulum. We used a blackwood ballistic pendulum to launch a ball mass projectile. We recorded the distance of fall and used that information in the kinematic equation to determine the flight time, and then used the flight time to determine the muzzle velocity. In the second part of the experiment we fired the ball into the pendulum and recorded the change in elevation that the pendulum made when the mass hit it. When then recorded the elevation measurements and then used those measurements to calculated and record the energy and momentum calculations. Our results showed a 2.9% energy lose in the collision of the ball and pendulum.
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CALCULATIONS v muzzle = R avg / T flight vmuzzle=2.68/0.417
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