This past Friday i had a soccer game for jv soccer against punahou. We tied 0-0 :[ but i realized theres a lot of physics in soccer. Whenever the ball is kicked momentum is transferred from the players foot, leg, or head to the ball. Kicking the ball exerts more force on the players foot than simply stopping the ball because the ball has a greater change in velocity (final velocity - initial velocity). If the ball is coming at me with a speed of -5 m/s and i kick it to make it go 20 m/s (strong yah?) the change in velocity was 25. I had to not only stop the ball, but also kick it forward (in the opposite direction). This picture shows my back because as i was looking for a picture i realized that i make funny faces when i play. That punahou girl is making a funny face pretty similar to how my face looks in all the pictures. Except mine is weirder. So this picture is my favorite. for sure.

This friday was homecoming (duh) and as I watched the game from the sidelines with 2 super cool waterbottles in my hands i saw Kellen get his first tackle! When he came off the field and I went to give him water (since im such a dedicated watergirl) he told me how it felt like he absorbed the force of the guy he was tackling. Being the cool kid that I am i thought omg thats physics! Both Kellen and the WOLA player had kinetic energy, or the energy of objects in motion. The force (Kellen) was going in the opposite direction of the object (the WOLA player) so Kellen did negative work. His negative work stops the guy and lowers his kinetic energy to zero. The negative work decreases the energy. The picture right therrre has nothing to do with the homecoming but its the best i could do since i couldnt find any (I dont think Mr. Linsky posted the pictures yet). But it has to do with football so close enough I guess.