Lab 3 - Newton's Second Law_ PostLab.pdf - Lab 3 Newton's...

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10/18/2019 Lab 3 - Newton's Second Law: PostLab 1/14 Current Score : 100 / 100 Due : Tuesday, October 1, 2019 10:20 AM EDT Override: 100 Lab 3 - Newton's Second Law: PostLab (PostLab) Alyssa Valentine PY 211, section 201, Fall 2019 Instructor: Robert A. Egler WebAssign Last Saved : n/a Saving... () The due date for this assignment is past. Your work can be viewed below, but no changes can be made.
10/18/2019 Lab 3 - Newton's Second Law: PostLab 2/14 1. 18.75/25 points | Previous Answers Use the exact values you enter to make later calculations. A group of students performed the same "Newton's Second Law" experiment that you did in class. For this lab, assume g = 9.81 m/s 2 . They obtained the following results: m 1 (kg) t 1 (s) v 1 (m/s) t 2 (s) v 2 (m/s) 0.050 1.2000 0.2500 1.7337 0.4694 0.100 1.2300 0.3240 1.6045 0.7640 0.150 1.1500 0.3820 1.4560 0.9052 0.200 1.1100 0.4240 1.3772 1.1031 where m 1 is the value of the hanging mass (including the mass of the hanger), v 1 is the average velocity and t 1 is the time at which v the instantaneous velocity for the first photogate, and v 2 is the average velocity and t 2 is the time at which v 2 is the instantaneous velocity for the second photogate. (a) Use Excel to construct a spreadsheet to do the following. (You will not submit this spreadsheet. However, the results will be needed later in this problem.) (i) Enter the above data. (ii) Compute the acceleration, a , for each trial. (iii) Create a graph of the hanging weight m 1 g vs. the acceleration. (iv) Use the trendline option to draw the best fit line for the above data and determine the slope and y -intercept from it. 1 is (v) report your results below. slope = 0.7031 kg 0.703 kg y -intercept = 0.199 N 0.199 N
10/18/2019 Lab 3 - Newton's Second Law: PostLab (b) Use the information you obtained from your graph to determine the total mass of the system M = m 1 + m 2 .
3/14 Additional Materials Newton's Second Law Appendix
(c) Using the information you obtained in parts (a) and (b), predict what the value of the acceleration would be if the value of the hanging mass were increased to m 1 kg. Your answer cannot be understood or graded. More Information 3.9 m/s^2
10/18/2019 Lab 3 - Newton's Second Law: PostLab 4/14

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