Physics Lab

pdf

School

Indiana University, Bloomington *

*We aren’t endorsed by this school

Course

211

Subject

Physics

Date

Apr 3, 2024

Type

pdf

Pages

Uploaded by AmbassadorMulePerson783

P201 Collison on an Air Track Alison McHugh Introduction: This lab consists of examining collisions between two air carts that have no friction due to being on an air track. Runs of these collisions were logged to find the velocity before and after the collision for each cart. This experiment uses a closed system to show that when there is an absence of external forces, the linear momentum will be conserved in all collisions. Methods: The general methods are described in detail in the lab manual. An air track and carts were used to test collisions. Wedge bumpers were placed on both ends of one of the gold carts, and the other gold cart had one wedge bumper and one rubber band bumper. The two gold carts were massed and labeled. Both carts were placed on the air track. One cart was at rest while the other was pushed towards the resting cart. The next section of this experiment is repeating the above protocol where the two carts are each moving. Then the experiment switches one of the gold carts for a cart of an unknown mass. The same procedure is followed as above where one cart is at rest. In the final part of this experiment, the red cart has a bumper device removed and replaced with a pin. The gold cart received a cork. One cart was pushed to test this inelastic collision. Logger Pro was used to record the runs. Data/Analysis/Calculations: Mass of Cart 1: `𝑚 1 = 316.0 g ± 0.1 g Mass of Cart 2: 𝑚 2 = 315.7 g ± 0.1 g Two carts of equal masses with one cart at rest:

𝑣 1 = 0.0009 δ v = 0.0002364 √4 = 1.182 x 10 -4 𝑣 1 ′ = -0.2581 δ 𝑣 1 ′ = −0.2581 √5 = 0.1154 𝑣 2 = -0.2657 δ v 2 = 0.001251 √4 = 6.255 x 10 -4 𝑣 2 ′ = 0.001554 δ 𝑣 2 ′ = 0.0006269 √5 = 2.8 x 10 -4 Momentum before collision: P = m 1 v 1 + m 2 v 2 P = 316(0.0009) + 315.7(-0.2657) P = -83.60 Momentum after collision: P = m 1 v 1 ’ + m 2 v 2 ’ P = 316 (-0.2581) + 315.7(0.001554) P = -81.07 The before and after of the experimental results agree with the theoretical results within their uncertainties as they are almost equal. Two carts of equal masses with both moving:

𝑣 1 = 0.1386 𝑣 1 ′ = -0.1778 𝑣 2 = -0.1826 𝑣 2 ′ = 0.1351 Before: P = (316)(0.1386) + (315.7)(-0.1826) P = -13.849 After: P ’ = (316)(-0.1778) + (315.7)(0.1351) P = -13.534 The before and after of the experimental results agree with the theoretical results within their uncertainties as they are almost equal. Two carts of un-equal masses with one cart at rest: Red cart mass: 180.4 g ± 0.1 g

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

Experimental mass of red cart: M 1 v 1 + m 2 v 2 = m 1 v 1 ’ + m 2 v 2 ’ (316)(0.1912) + (m)(-0.2490) = (316.0)(-0.1275) + (m)(0.3268) M = 174.9 g The experimental mass agrees with the actual mass. Inelastic Collision Experimental mass of red cart: M 1 v 1 + m 2 v 2 = m 1 v 1 ’ + m 2 v 2 ’ (303.7)(-9.258x10 -5 ) + (m)(-0.6319) = (303.7)(-0.2205) + (m)(-0.2242) M = 164.18 g The experimental mass agrees with the actual mass. Conclusion:

Since no external forces were acting on the system in the first half of this lab, the momentum has been conserved. Within the experimental error, the sum of the momenta before collision the almost the same as the sum after the collision. This was found to be true for all the sections of the experiment. Additionally, elastic collisions were found to provide a more reliable measurement of the red cart’s mass. As seen in the data section, the experimental mass of the red cart using elastic collision was closer to the actual value than the inelastic collision. This is likely because in the elastic collision the total momentum of the system before and after the collision is conserved.

Related Documents

Phys 244 Torque Online 2022.docx

Kami Export - RocketSledder.pdf

Lab#3.pdf

exam2 (1).pdf

Lab Newton’s First and Second Laws (SIM)-1.docx

PHYS Lab 1.docx

May The Force Be With You Worksheet.docx

Rotational Motion.docx

Unit 13 Lab - Trisha Menon.pdf

Lab 1_ Describing motion (1).docx

Measurement and Error Analysis Lab.docx

FORCE AND NEWTON’S LAWS REVIEW.docx

Recommended textbooks for you

Physics for Scientists and Engineers: Foundations...

Physics

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Cengage Learning

College Physics

Physics

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Cengage Learning

Physics for Scientists and Engineers with Modern ...

Physics

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Cengage Learning

Glencoe Physics: Principles and Problems, Student...

Physics

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Glencoe/McGraw-Hill

Physics for Scientists and Engineers

Physics

ISBN:9781337553278

Author:Raymond A. Serway, John W. Jewett

Publisher:Cengage Learning

College Physics

Physics

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:OpenStax College

SEE MORE TEXTBOOKS

Recommended textbooks for you

Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College