The Forward Pass
The second project we did this year was the Physics of Sports Video. I was in a group with Eliza, Brigid, and Dean, and we quickly decided on the physics of a 20 yard forward pass that was thrown by me and caught by Dean. We had roughly 3 weeks to work on this project, 2 filming days a week, or 7 days in total. We spent time designing a storyline and a script, filming the video, and editing.
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Calculations
Our video was the most entertaining out of all 17 videeos, but what really gave us the best score were all of our calculations being 100% accurate.
Velocity-The speed of something in a given direction.
Horizontal Velocity of Football Being Thrown:
v=d/t
v=18.29m/1.25s
v=14.632m/s
Vertical Velocity of Football Being Thrown:
v=at
v=9.8m/s x .625s
v=6.125m/s^2
Force-The change in motion of an object.
Force of Football Being Thrown:
mv=ft
(.4kg)(15.8m/s)=F(.3s)
6.32=F(.3s)
6.32/.3s
F=21.1N, or about 5 lbs.
Force of Football Being Caught:
mv=ft
(.4kg)(15.8m/s)=F(.16s)
6.32=F(.16s)
6.32/.16s
F=39.5N, or about 9 lbs.
Velocity-The speed of something in a given direction.
Horizontal Velocity of Football Being Thrown:
v=d/t
v=18.29m/1.25s
v=14.632m/s
Vertical Velocity of Football Being Thrown:
v=at
v=9.8m/s x .625s
v=6.125m/s^2
Force-The change in motion of an object.
Force of Football Being Thrown:
mv=ft
(.4kg)(15.8m/s)=F(.3s)
6.32=F(.3s)
6.32/.3s
F=21.1N, or about 5 lbs.
Force of Football Being Caught:
mv=ft
(.4kg)(15.8m/s)=F(.16s)
6.32=F(.16s)
6.32/.16s
F=39.5N, or about 9 lbs.
Reflection
Overall, I think I improved greatly during this project. I had my ups and downs, along with everyone else, but I stayed on task much more than I did during the Rube Goldberg Machine and I talked with my friends much less. My group worked together very well, except for a few times where we were all just messing around on the football field, but we all got along and everyone contributed to the project. The biggest obstacle we faced was not being able to work on it after school, since only Brigid had access to it. I wanted to fix the music in the video, but I had no time during class, because we had to finish our voice overs. So I quickly put the music in, but I didn't make it sound just right. I learned that a lot about video editing during this project, much of it being about filming and uploading. I taught my group and some others in the class about uploading music, because I took film in 8th grade at Sinaloa. I also could've done a lot more during this project. Although I improved greatly this project, there's always room for improvement, so I could've done much more. I could've contributed more ideas to the project such as what to say during the script. I also could've helped on the calculations more, since Eliza and Brigid did most of them.