Ballistics - Elliot Marshall PHYS 103L-04 February 14, 2008...

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Elliot Marshall PHYS 103L-04 February 14, 2008 Ballistics Object:  To measure vertical and horizontal components of a projectile and be able to predict the  motion of a projectile. Apparatus: Spring launcher, steel ball, meter stick, photo-gate, paper, target, and computer.  Procedure: First we set up the launcher to launch the ball horizontally.  Each time we used the same  ball bearing, cocked it back to the third power level, made sure the ball was flush against the  spring mechanism, then fired through a photo-gate.  We tried to put the photo-gate at a height  that it would measure over the entire diameter of the ball.  We took five time trials of this type for  more accuracy.  Then we figured out how thick the photo-gate beam was by passing drill bits of  known thickness through the beam to see when it would register.  We used all this data to  calculate the muzzle speed of the ball. For our next experiment we set the launcher to horizontal again and fired five shots onto  a piece of paper.  Then we measured the height of the launcher from the floor to the bottom of 
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the ball and the horizontal distance each of the five shots traveled.  We then averaged the 
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This lab report was uploaded on 04/07/2008 for the course PHYS 103L taught by Professor Nawashj during the Spring '08 term at Gonzaga.

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Ballistics - Elliot Marshall PHYS 103L-04 February 14, 2008...

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