Lab 2 Velocity and Acceleration graphing JM (2)

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Northern Virginia Community College *

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101

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Mechanical Engineering

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Apr 3, 2024

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Velocity and Acceleration (Tatiana Stantcheva) Purpose of this lab To analyze the motion of the NASA/SpaceX Falcon 9 rocket during its first 3 minutes. Here is a recording of the launch that occurred at 3:22 pm on May 30, 2020 https://www.youtube.com/watch?v=TxBj8R7XKe4 https://youtu.be/MokKBDaSjUA Alternative video to adjust Activity 1. Collecting Data from the Video Open a spreadsheet and record the velocity of the Falcon 9/Crew Dragon for the first 3 minutes in increments of 5 seconds, beginning from T0 to T+00:03:00 The velocity in km/h is given in the lower-left corner of the video. Use the launch counter for the time, e.g. T+00:00:15 is time marker of 15 seconds after launch. Here is an example of how your spreadsheet should look like. You should have about 25 entries - data for the first 3 minutes of the flight.
Activity 2. Data Analysis Plot of speed versus time The speed in the lower corner is given in km/h. In your spreadsheet, add a column where you convert the speed in the metric system. Here is an example of your spreadsheet: Plot the speed in m/s versus time in the second graph. (See page three.) Questions: 1. During what time intervals is the graph linear? 2:27-2:37 2. How does the graph look around the time Falcon separates from Crew Dragon? There was a slight drop in speed, and then the thruster for Falcon was initiated so the speed slightly accelerated again. y = 1.0216x 2 + 27.014x - 31.434 R² = 0.9694 -500 0 500 1000 1500 2000 2500 0:17 0:27 0:37 0:47 0:57 1:07 1:17 1:27 1:37 1:47 1:57 2:07 2:17 2:27 2:37 2:47 2:57 3:07 SPEED (M/S) Y-AXIS TIME(S) X-AXIS Speed(m/s) v. Time (s)
Speed(km/hr.) Time (s) M/S 218 0:17 60.55 312 0:22 86.66 408 0:27 113.33 499 0:32 138.61 610 0:37 169.44 733 0:42 203.61 820 0:47 227.77 886 0:52 246.11 954 0:57 265 1033 1:02 286.94 1115 1:07 309.72 1238 1:12 343.88 1426 1:17 396.11 1602 1:22 445 1816 1:27 504.44 2039 1:32 566.38 2293 1:37 636.94 2565 1:42 712.5 2839 1:47 788.61 3147 1:52 874.16 3470 1:57 963.88 3834 2:02 1065 4223 2:07 1173.05 4647 2:12 1290.83 5082 2:17 1411.66 5482 2:22 1522.77 5923 2:27 1545.27 6426 2:32 1785 6790 2:37 1886.11 6705 2:42 1862.5 6604 2:47 1834.44 6623 2:52 1839.72 6668 2:57 1852.22 6702 3:02 1861.66 6769 3:07 1880.27
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