There are many examples of physics in lacrosse. Newton's 3rd Law can be found in action for as I am running with the ball, the turf is applying a force upwards on my feet, as my feet apply a force downwards onto the turf. Projectile motion is another component of physics that can be found in lacrosse. The trajectory of the ball as it comes out of my pocket (my lacrosse head) can affect how the ball is released. If launched properly, the ball should go straight. If the ball is launched at an awkward angle or not enough force is applied, the ball could go straight to the ground, or up into the air. Friction also plays a part in the game of lacrosse. If a ball is dropped onto the turf, it will roll for a much longer time, at a faster pace, than if it were to roll on grass. The turf is much more slick and has less friction, allowing the ball to roll more. The grass, however, is longer and more coarse, preventing the ball from going very far. Friction also affects the stick when a player is to go for a ground ball. As I move my stick along the ground to pick up the ball, friction is created which sometimes makes picking the ball up difficult.