Physics of Sports Video : The Shoulder Bump
We decided to do our video on something that is done in almost every sport. The shoulder bump was harder to perfect then it looks. It took us many tries to complete perfectly. In the creation of the video we were allowed 7 class days or 14 hours. The first 2 days we spent scripting and story boarding. The next 5 days were used to film and edit.
Content:
Force of an Impact: To calculate the force of an impact we had to use the formula ft=mv. Or in other words, Force x Mass = Mass x Velocity. Since Newton's Third Law states: the force A exerts on B is the same B exerts on A. We only need to use the mass and velocity of one person. We chose to use Ben's mass and velocity to get 489 Newtons or 122 pounds.
Vertical Velocity: To find vertical velocity you have to find the person's total time in air and multiply it by the acceleration due to gravity. In our video, we calculated Ben's vertical velocity. His velocity was about 1.96 meters per second. This converts into about 4.38 miler per hour.
Horizontal Velocity: To find horizontal velocity you have to divide the change in distance by the change of time. In our video we found the horizontal velocity of Ryan in the air. We found that he was going 1.32 meters per second. This converts to about 2.95 miles per hour.
Vertical Velocity: To find vertical velocity you have to find the person's total time in air and multiply it by the acceleration due to gravity. In our video, we calculated Ben's vertical velocity. His velocity was about 1.96 meters per second. This converts into about 4.38 miler per hour.
Horizontal Velocity: To find horizontal velocity you have to divide the change in distance by the change of time. In our video we found the horizontal velocity of Ryan in the air. We found that he was going 1.32 meters per second. This converts to about 2.95 miles per hour.
Reflection:
Throughout my project there where many problems. First we tried to use Jake and I in the shoulder bump. Jake was heavy and hitting me with more horizontal force. When we switched to Ben he weighed around the same weight as I did. We also both jumped more vertically. When it came to editing we had a few problems. To make our video more visually appealing, I decided to make each title pop up as it was being said. This took time so it took me a while to edit the whole thing. At the end we realized we had made a mistake. We used a horizontal velocity equation for vertical velocity. This error is still in the video above.