4 12 pts watch this video of spacex launch of a starlink mission from
4. (12 pts) Watch this video of SpaceX launch of a Starlink Mission from the Vandenberg
Space Force Base in California:
(a) Using Excel, Python, any other computer program, or a graphing calculator, make a
graph of the speed of the Stage 1 rocket as a function of time between t = 00:00:00
(launch) and t = 00:09:00 (landing, 9 minutes after launch). Include in your PDF exam
upload, a printout, photo or screenshot of your graph.
Hint #1: You should use at least 50 points (1 point every ~10 seconds) to make your
graph. During time intervals when the speed changes rapidly, you should consider
plotting I point every ~2 seconds.
Hint #2: For guidance on how to make this graph using Microsoft Excel, visit this
(b) Describe in words how the speed of Stage 1 (revealed by your graph) changes as a
function of time between t = 00:00:00 and t = 00:09:00.
(c) Make a graph of the tangential acceleration of Stage 1 between t = 00:00:00 and
t = 00:09:00. Include in your PDF exam upload, a printout, photo or screenshot of your
Hint: The tangential acceleration is the acceleration along the trajectory.
(d) Describe in words how the tangential acceleration of Stage 1 (revealed by your graph)
changes as a function of time between t = 00:00:00 and t = 00:09:00. Explain the
reasons for any abrupt changes in acceleration, and the meaning of the sign (positive
or negative) of the acceleration.
(e) Calculate the distance (in kilometers) traveled by Stage 1 along its trajectory between
t = 00:00:00 and t = 00:09:00.
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