Monday, September 12, 2011

Late Labor Day Blog

In chapter 2 we studied further into kinematics. We learned more about velocity, acceleration, and speed. I will be talking about each one in this example of kinematics on the football field. In this picture Kanekoa, our excellent kicker, is punting the ball away on a failed 3rd down conversion. As you can see the ball is being kicked up. Since gravity is applicable in our everyday life the football is bound to come down. If the punt returner catches the ball at the same height at which the ball was punted then the football should have around the same speed (if we ignored other variables such as wind, ball spin, etc.). The footballs velocity changes because the football changes direction in mid-air. This is due to the acceleration of the football which goes from slow to fast, then reaches the peak where the velocity becomes 0, then progresses from slow back to fast. This just shows once again that kinematics is applicable in football as well as our everyday life.

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