Question horizontal speed of spacex rocket

May 16, 2020
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Hi, i recently extracted some spacex telemetry and i wanted to calculate the horizontal speed and i saw that the formula was Sx = speed cos(angle) but i don't have the angle. i will appreciate if someone can help me with this.
 
Jun 23, 2020
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Hi, i recently extracted some spacex telemetry and i wanted to calculate the horizontal speed and i saw that the formula was Sx = speed cos(angle) but i don't have the angle. i will appreciate if someone can help me with this.

I'm not a math or physics person. All I know is that the ISS is traveling in an orbit above Earth at 17,500 miles per hour. The Crew Dragon had to travel at that same speed in order to be able to dock successfully onto the ISS. Which they did. I can't even wrap my brain around that little fact, especially since the videos make it look like they are standing almost still or moving very slowly. Good luck with your horizontal speed calculation. I love all you brainiacs!