Our assignment:

• Our project was to pick a sport and find the physics behind it and find a way to help improve it so we could help San Marin sports teams.

• My teammates and I agreed to choose the sport lacrosse since 2/3 of my group played and have lots of experience playing the sport.

• We covered things such as throwing, catching, how to hold a stick, how you can improve and how to cradle.

Our Video

Our Script

Physics of sports video:Lacrosse

Welcome to our physics of sports video today we will be talking about Lacrosse. My name is Claire Kilgariff. I am Nataile Davila and I am Josh Danziger.

Lacrosse is a team sport originated by the North American Indians. The sport is played with a metal stick or pole with a net at the end. The name “lacrosse,” however, has French origins. The name lacrosse came from the French word for field hockey which is le jeu de la crosse

Now on to holding the stick. You hold the stick with both of your hands, one is almost always at the bottom, while the other is farther up depending on the amount of control you want over the ball in the pocket. When the ball is thrown, the stick should be held with both hands close to the bottom of the stick, creating a sort of hybrid of a class____ and class____ lever with a mechanical advantage of about ____________.

Now moving on to throwing. When you throw a lacrosse ball you push your top hand forward and pull your bottom hand back to make some sort of a lever. This will allow the ball to launch out of your stick and fly to a selected location.

Catching the lacrosse ball is an impact on your stick and net. You move your body and stick to where the ball is falling, and move the stick back with the ball. This increases the amount of time it takes for the ball to slow down, lowering the impact at a given moment and any chance that the ball will bounce out. Cradling then creates a sort of centrifugal force that pushes the ball into the net because when you cradle you are moving your stick in a circular motion. The friction of the ball on the mesh of the net also keeps the ball in the net. The velocity of the ball during these short pass is about 9 meters per second, or 20 mph. We are standing 18 feet from each other and it took the ball 0.3 seconds to travel from one stick to the other.

In this video we have gone over what lacrosse is. How to hold your stick. How to throw and catch and briefly how to crable. Then we went over the impulse and impact and the numbers with that. Then the velocity of throwing a ball.

Format of the video/how its going to go

Force of impact is the force generated when objects meet.

Vertical velocity is the acceleration due to gravity acts in the vertical direction

Horizontal velocity is the rate at which an object is traveling parallel to the earth.

Total Velocity the speed of something in a given direction.

Reflection

Overall I enjoyed this project very much. I learned many new things and even picked up a few lacrosse skills. My group and I worked very productively and got everything done in an orderly way. In this project each one of us took a part of the project and did it. One thing to work on for next time was to be more creative. We as a group felt that we could have done more to make the film be more enjoyable for others to watch. Overall this was a very fun project to work on and I learned some new things!