# Velocity calculation 151 0478 v x 316 m s calculated

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Velocity calculation 1.51 0.478 = v 0 x = 3.16 m / s Calculated values: Measurement Value Time (sec.) 0.478 Velocity (m/s) 3.16 Part B: Measurement Value vertical distance (m) 1.131 Velocity (m/s) horizontal 2.72 Velocity vertical (m/s 1.57 Theoretical horizontal range (m) 1.82 Experimental Horizontal Range (m) 1.8268 Calculations B: Vector Velocity: 3.14cos ( 30 ) = x = 2.72 3.14sin ( 1.57 ) = y = 1.57 Time elapsed: 1.131 = 1.57 t ± 4.9 t 2
5 EVALUATION OF PROJECTILE MOTION t = 0.67 Distance traveled: 2.72 × 0.67 = ∆ X = 1.8224 m. Percent Error: | 1.8268 1.8224 | 1.8224 × 100 = 0.24 % error Discussion The results of this experiment helped to shine light on the factors that affect projectile motion. Though the horizontal vector velocity of the second part of the experiment is slower than the first part, the horizontal distance is significantly larger in the second part. The difference in results of this experiment can be attributed the launch angle of the projectile, causing a different trajectory. An extension to this experiment could be calculating and testing angles of trajectory in order to identify the best angle for the most horizontal distance. This could also be tested with projectiles of differing weights to determine how mass effects distance. The minor error in the final distance could have been due to the lack of recognition to air resistance in the calculation, which was not a hindrance to the final result. Overall, the experiment was successful and provided satisfactory results.

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