Physics of Sports Video

Process Of Making the Video

When given the task to make a physics of sports video our first step was to cooperative with my team to figure out what sport we would all agree on. We decided to make our video about Ultimate frisbee because it was unique and we knew no one would choose to do it. We were given around two weeks to finish the project. In the first few days we made a rough draft storyboard and script to have a layout of what we were going to put into our video. My teammates and I each made our own storyboard and came together to combine our ideas into one. Once we got our script and storyboard approved we moved onto filming clips for our video.

The first day of filming we went up to the football field to practice throwing the frisbee. The first clip in our video was setting the mood for the entire video and showing the rules of ultimate frisbee. By having a video clip from the internet in our video, we were able to help the audience have a better understanding of what ultimate frisbee is all about. The second day we shot a clip of my team and I stretching to make the video have a piece of comedy in it so the video was not boring.

The next couple of days we were mostly filming on the football field. While we were on the football field we took videos of one of my teammates showing what the stance should look like. We also filmed ourselves catching the frisbee in three different ways. One of the ways was catching while running, catching while stationary and catching with a spin move. Also we included videos of throwing the frisbee with the backhand method. In the final days of working on the project we stayed in the classroom and put all of our videos into the app IMovie. Once the videos were put into order we made voice overs for all the videos and put music and sound effects into the back round.

Storyboard

A setup of what we were going to incorperate in our video.

Physics of Frisbee Video

Shorter and edited version of script:

Ryan: Want to go to the field to play some ultimate frisbee?

Daniel:Sounds good, but we can’t forget to do our ultimate stretches.

Selina: Sure lets go I just need to go get my frisbee.

--Cut to the field---

Selina: Time for our ultimate stretches

Selina: Ok, I think that is enough stretching for today, now lets warm up for the big game.

Daniel: Sounds good, Ryan why don’t you show Selina and me the proper stance to throw the frisbee

Ryan: Okay I like that idea. First have your shoulders directed at your target. Then bend your throwing arm towards your body and step forward with your dominant foot. When you throw the frisbee you should keep your arms and frisbee parallel to the ground so that it releases at a flat angle to your team mate. Hey Selina and Daniel go long.

Selina: Thank you Ryan. But now I’m going to explain how to catch a frisbee. The most common way is the alligator method in this method you will take one of your hands and put it on top of the disc and the other hand underneath the frisbee.

--- then show calculations and talk about torque -----

Ryan: The best way to throw a frisbee is gripping the firsbee in your dominant hand and having your feet set at an 90 degree angle. Then right before you are about to throw the frisbee you will curl your rest back towards your body, aim at your target and quickly move your arm forward releasing the frisbee with an appropriate amount of motion.

Content

Vertical Velocity: Vertical Velocity is the speed of an object in a certain direction. The vertical velocity of the frisbee was 5.39 m/s. Velocity is the speed in a given direction and vertical is the speed in a vertical direction. Acceleration due to gravity is 9.8 meters per second. Therefore, the amount of force you use to throw the frisbee gets disturbed by the acceleration due to gravity (9.8 m/s), causing the frisbee to go downwards. The equation for vertical velocity is Vv = 1/2Agt squared. Our group then found the time the frisbee was in the air and squared it to get 1.1 s. We then multiplied 1/2 (9.8 m/s) (1.1) = 5.39 m/s.

Horizontal Velocity: Horizontal Velocity is the speed at which an object travels. This can be calculated by using the formula Vh = change in distance/ change in time. Change in distance is the distance traveled and the time is the time passed while traveling that distance. The frisbee traveled 9.144m and it took 2.2s so we got velocity horizontal of 4.16 m/s.

Total Velocity: The total velocity is the diagonal velocity of the horizontal and vertical velocity. In order to find the total velocity which is the hypotenuse of a triangle you would use the Pythagorean theorm. The Pythagorean theorm is a squared + b squared = c squared. When the numbers were squared we got 17.31 m/s + 29.05 m/s = 46.36 m/s. The total velocity is 46.36 m/s.

Force of Impact: The force of impact is how hard an object hits another object in a period of time. We found the force of impact for the throw and catch of a frisbee. In order to find the force of impact we used the formula F = Mass frisbee ( velocity frisbee) = force impact ( time impact). For the throw we got a force of impact of 5.17 N. Then for the force of the catch would be the same equation but different numbers. We got 11.9 N for the force of impact on the catch.

Momentum: Momentum is the quantity of motion of a moving object, it's measured as a product of its mass and velocity. The formula for momentum is p=mv, the m is the mass and the v is velocity. The more mass and the faster it is traveling then the harder to stop the object.

Impulse: An impulse is a force acting on an object for a certain period of time. Impulse is calculated by J=ft, f= force and t= time. Since force is a vector quantity, impulse is also a vector in the same direction.

Calculations

Reflection

Two things that I believe I did well on in this project was being a leader and having good time management. As a leader of the project I created team goals and gave everyone jobs to do. I believe I executed my part of the project well and I also was in charge of editing the video. Being the leader it was important to be loud and direct. I also made sure we were getting aspects of the project done in time so we did't fall behind. Everyday I made sure we had gotten something done on the video. As it came to the final days of working on the project we were pretty much ahead of all the groups because we used our time wisely.

Two things I would like to keep working on is not being to bossy and not freaking out about the little details. Being the leader I felt like I was giving off a negative energy. I tried to tell my teammates what to do and how to do it. I didn't really listen to their ideas and what they had to say. In life and when working on projects I know nothing ever comes out the way you want it to be. So if a mistake is made I will try not to freak out and become panicked. All try to fix it and if I can't then I have to understand it's okay.

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