PHYS227 Lab 3 Report Template - Projectile Motion (1)

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University of Delaware *

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207

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Physics

Date

Apr 3, 2024

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pdf

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5

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2024S 1 of 5 PHYS227 Lab Report 3 Projectile Motion 051L Ji Ava Barkow, Erin DeGroat Date Performed: 2/29/2024 Introduction This lab is important as it demonstrates the launch characteristics of an object undergoing constant acceleration. The lab shows how error is a prevalent factor when measuring and calculating values. Lastly, the lab teaches you how to make accurate predictions with uncertainty for the range of a projectile filed horizontally. Procedure This is the launch projectile used with the metal ball, table clamp (not seen) securing it to the table, and metal rod. The procedure followed was the manual “PHYS2 27 Lab 3: Projectile Motion, Spring 2024 . The following specifications/exceptions were noted: We followed the manual. Data and Analysis Part A: Finding the initial velocity of the projectile launcher Initial velocity = squ root(2gh) The bottom launch point is the “launch position” marker on the launcher. Projectile Launched Straight Upward Trial Maximum height (m) ( y max ) 1 1.105 2 1.11 3 1.115
Student Names PHYS227 Lab 3 Projectile Motion Date Performed 2024S 2 of 5 4 1.1 5 1.105 The error is the diameter of the ball: d=1.5cm=.015m Error in maximum height is .015m (1.5cm) from 1.107m (110.7cm). Average max height = (1.105+1.110+1.115+1.100+1.105)/5 = 1.107 meters Initial velocity = sqrt(2(9.81m/s^2)(1.107m)) = 4.66 m/s Error in initial velocity = (0.015m)(sqrt(9.81/(2(1.107))) = .0316 m/s Part B: Predicting and testing the range of a horizontally fired projectile Range = inital velocity x squ root(2h/g) Prediction: x = (2.33)(sqrt((2(.371))/(9.81)) = .641m Error in initial range = (.0316)(sqrt((2(.371)/9.81)) = .0087m = 0.87cm Projectile Launched Horizontally Trial Range (m) ( x r ) 1 1.219 2 1.219 3 1.214 4 1.219 5 1.22 Average = (1.219+1.219+1.214+1.219+1.22)/5=1.2182 The range of the projectile is x r,meas = 1.2182 ± .0087m. All derivations and calculations:
Student Names PHYS227 Lab 3 Projectile Motion Date Performed 2024S 3 of 5 Actual projectile sheet with prediction lines and marks where the projectile landed:
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