# Meter sticks were used to measure the displacement in

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values. Meter sticks were used to measure the displacement in the X and Y axes. To gain more accurate results, Carbon paper was used as a way to create a clear mark on where the ball landed from the projectile launcher. These materials are instrumental in collecting data for the experimental analysis. To collect accurate data, the projectile launcher was fired in order to identify where the carbon paper should be placed. Once the carbon paper and printer paper were placed, the launcher was fired five more times in order to get a general horizontal distance that the ball traveled. The carbon paper’s ability to mark where the ball landed allowed for the average distance of travel to be marked and measured using the meter sticks. The measurements in this part of the experiment would be used to calculate time and velocity of flight. For the second part of the experiment, the launch angle would be changed, but the other portions of the experiment would remain the same. The exception to this is that the distance would be calculated mathematically, and then measured physically to compare the two values. The difference between these two values is the air resistance of the physical experiment. Results Part A: Measurements Value Horizontal distance (m) 1.506 Vertical drop distance (m) 1.124 Calculations Part A: Y final calculation (used to find time in this case)
4 EVALUATION OF PROJECTILE MOTION y = y 0 + v 0 y t 1 2 9.8 t 2 1.124 =− 4.9 t 2 1.124 4.9 = t 2 1.124 4.9 = 0.478 sec .

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