Module 3 Lab 3 Rocket Launch

docx

School

Northern Virginia Community College *

*We aren’t endorsed by this school

Course

201

Subject

Physics

Date

Feb 20, 2024

Type

docx

Pages

Uploaded by ChefLapwing7325

NOL PHY 201 Lab - Velocity and Acceleration Name Jasleen Kaur Before starting, please scroll through the worksheet to check the page numbers and get all the information. Complete all activities before submitting the lab. Each lab counts for 20 points and is about 1.42% of the total grade. Lab Goals This lab will help you learn the following:  how to do video analysis  Working on a spreadsheet plotting a chart. Introduction This lab uses a video of the launch of the NASA/SpaceX Falcon 9 rocket during the first few minutes of its flight. The Lab is divided into three activities. Use this video to collect the data.  Watch SpaceX Falcon 9 and Dragon rocket launch In this lab, you will report your data in a spreadsheet in Microsoft Excel. Make sure to save this file and submit it together with the Microsoft Excel file as your report. Activity 1. Collecting Data from the Video As you watch the video, notice that in the lower left corner of the screen the velocity of the rocket is given in km/hr. You will see this information beginning at about 17 seconds after launch. Use the launch counter for the time, e.g., T+00:00:45 is a time marker of 45 seconds after launch. 1. Open an Excel spreadsheet and record the velocity of the Falcon 9/Crew Dragon for the first 3 minutes in increments of 5 seconds, beginning from T+00:00:20 to T+00:03:00. You should have two columns: one column for time (in seconds) and a second column for velocity (in km/hr). 2. Add a third column with the velocity converted to m/s. Label all your columns and include the units only on the labels. Page 1 of 5

NOL PHY 201 3. Make a graph of velocity vs. time using the data with units of m/s. The velocity should be on the vertical y-axis and the time on the horizontal x-axis. Use "Scatter plot", do not connect the data. 4. Paste a copy of this graph here. Activity 2. Analyzing Data 1. The last part of your data should show a much different shape than the initial data. At about what time does this change happen? What happens in the video at that moment? Why does this cause the shape of the graph to change? Page 2 of 5

NOL PHY 201 It changed between 0:02:40 to 0:02:45 seconds as it changed from Meco to Stage separation. Stage one separated from stage 2 which made its velocity go down. 2. Note : Future questions will refer to the data prior to the time you identified in the previous question. 3. Without doing any calculations, write what happens to the acceleration of the rocket as time progresses starting from the beginning of the motion? How do you know from looking at the graph? The acceleration was increasing every 5 seconds of motion. We can look at the graph and tell that we can see points are moving in the upward direction. 4. Think of some reasons why the acceleration behaves the way you described in the previous question. What is going on with the rocket that may cause this? The acceleration is increasing because of the increased pressure of fuel and the increasing pressure of air. 5. About 1 minute and 35 seconds after launch, the announcer makes a comment about the acceleration of the rocket. What is the exact phrase that the announcer uses to describe this acceleration? The acceleration was 1500 miles/hr and he also mentioned that Stage 1 was done with its job and was now Stage two’s turn to do its job. 6. Based on what the announcer says, calculate the value of the acceleration of the rocket in units of m/s 2 at this time. =11.1m/s^2 7. Use your data for the time interval (100, 150) s and make another "Scatter Plot" of velocity versus time. Velocity should be on the y-axis and time on the x-axis. 8. Using the built-in linear regression function in Excel, determine the equation for the line of best for the graph. Ask to show the equation. Page 3 of 5

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

NOL PHY 201 9. Paste here a copy of this graph with the best-fit line and equation shown. 10.From the best-fit line, determine the acceleration of the rocket during this time interval. What quantity from this line allows you to determine the acceleration? Explain the mathematics and physics which allows you to do this. A=(6243-2715)/(150-100)=70.56. Acceleration was calculated by determining the slope of the velocity time graph. Activity 3. Conceptual Questions 1. Can an object have a velocity with zero acceleration? Can an object have an acceleration but zero velocity? Explain why or why not. Page 4 of 5

NOL PHY 201 Yes, the object can accelerate when the velocity is zero. It the velocity is consistently in one direction, the body will reach a point at which its velocity is zero. 2. An object moving to the right has a positive acceleration which is decreasing. Is this object speeding up or slowing down? Explain why. Give a full description of the motion until the acceleration reaches 0 m/s 2 . The object is slowing down, the object can have a positive acceleration and can still slow down. For example v = -20 m/s and a = 5 m/s^2. The definition of acceleration is “the rate at which velocity is changing”, therefore a = 5 m/s^2 means that the velocity is changing by +5 m/s every second. So, if the object is initially moving at v = -20 m/s after 1 s of this acceleration the object will be moving at v = -20 m/s + 5 m/s = -15 m/s. After 2 s the object will be moving at v = -15 m/s + 5 m/s = -10 m/s. Page 5 of 5

Related Documents

Module 2-2 Equipotential II.docx

WavesonaStringRemoteLab_MiaMartinez.docx

Physics Lab Report #1.doc

Collisions .docx

10 ans.pdf

PHYS 130 Lab 4 (4).pdf

01-2426-Electric Field and Potential-LAB REPORT-Online(1)(1).pdf

sph4u_02.02.102.pdf

8 SHM Online.docx

PHYS 261 Lab Report 2.docx

HK 253 Lab 05 Reaching.docx

JillianKing_lab1.docx

Recommended textbooks for you

Glencoe Physics: Principles and Problems, Student...

Physics

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Glencoe/McGraw-Hill

Physics for Scientists and Engineers: Foundations...

Physics

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Cengage Learning

Inquiry into Physics

Physics

ISBN:9781337515863

Author:Ostdiek

Publisher:Cengage

SEE MORE TEXTBOOKS

Recommended textbooks for you

Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Inquiry into Physics
Physics
ISBN:9781337515863
Author:Ostdiek
Publisher:Cengage