Physics of football Essay Example for Free

Physics of football Essay Every Sunday afternoon in the fall, all across America, televisions, radios, and Internet broadcasts are tuned to the big football games. The sport of football has grown in popularity since the day it was invented, but not all of the views are good. The sport of football is viewed by many as a cruel and primitive sport, however every aspect within the sport of football is based in the field of physics. To begin to understand the complexity that is the game of football one can start by looking at how the punter needs to know the laws of physics to kick far. A punter’s job is to execute a drop kick (holding the football out and dropping it, then kicking the ball in midair) so as to give the other team the worst field position possible. This goal is only achievable with a kick that propels the football very far both horizontally and vertically. The punter is in charge of three things at the time of the kick: the velocity, the angle of the kick, and the rotation on the ball. Velocity is the speed at which the ball is propelled from the punter’s foot. The angle at which the ball is kicked combined with the velocity determines the distance the ball will travel. A ball kicked at a steeper angle with high velocity will have more hang-time (amount of time the ball is in the air), but will not travel very far. However, a ball kicked at a shallow angle with a high velocity will travel far, but it will not have the hang-time that many players desire (a punt with a long hang-time allows the players to get to the punt returner easier). Lastly, the rotation a punter puts on a football greatly affects how far the punt will go. If the ball is punted end over end, it will have more air resistance, slowing it down resulting in a shorter punt. A spiraling punt breaks through the air decreasing air resistance allowing for a kick with more distance. These same aspects are the ones applied to a quarterback when throwing the football (except without the kicking). One of the more sought after positions, and my personal favorite to play, is the running back. The job of the running back is to receive the football from the quarterback, and then try to gain as many yards as possible before being brought down to the ground by a defensive player. The running back lines up usually about three to five yards behind the line of scrimmage. This space allows the running back to accelerate to his top speed before he meets the defense. For a back to be able to change direction as he is running, he must plant his foot into the ground and apply force in the opposite direction. To stop going in one direction, a running back uses two different forces, the first of which is the force of friction (how hard it is to slide one object over another), and the second is the force with which the back applies. When a running meets a defensive player, his momentum must be greater than the momentum of the defensive player’s in order to break the tackle. On the opposite side of the ball, the linebacker is the defensive equivalent to the running back. He also is stationed three to five yards from the line of scrimmage in order to have room to accelerate. For a tackle to be made, the momentum of a defensive player must be greater than or equal to that of the offensive ball carrier. Momentum is found by multiplying the weight of an athlete by the speed at which he is moving. If the momentums of the two athletes are the same, then both players will come to a stop and in the game of football if the ball stops moving forward, then the carrier has lost. In my own experience, coaches have always told me to tackle low. The reasoning behind this is that a man’s center of gravity is usually located at just above the naval, and hitting below this point causes the runner to rotate, taking his legs off of the ground. If a player is hit above this point the tackler will just roll off, and if a player is hit on this point, he will be forced in to the direction he his hit, but it may not bring him down. The sport of football is a highly scientific game, and not the savage sport that many people see it as. Every aspect of the game can be figured through various physical formulas.

Is He or isnt She - Original Writing :: Papers

Is He or isn't She - Original Writing I reach my destination, not really convinced how I should feel, or what I should anticipate! A mid terraced house, unsure of the area, but seems calm. A cold October evening, 5 pm and already the streets are dimly lit, a clear sky above, evidently displaying the dazzling stars that gleam beyond. I approach the house to a very inviting welcome, are they really friendly people or do they not get many visitors? I make my way to the lounge and take a seat, a small table in the corner draped in a lace cloth, a bookshelf that covers one entire wall and bursting to the brim with books. I'm immediately offered refreshments before given the chance to proceed with the interview, "A cup of tea would be great, thanks". Where do I start? A very complicated person, whose life is full of twists and turns. Kris, 5ft 8in tall, medium built with shoulder length hair, the kind of hair I would describe a 60's rock star to have, like Mick Jagger's, the rough and ready look. Born in London, but you wouldn't know by her accent, she has more of a neutral tone. She grew up with the feeling of not belonging! It all started when schooling began, nursery then infants. She just didn't fit in and her parents didn't know what to do. "Send her off to boarding school, that'll change things." I sit there, listening to every word that is spoken to me. She's obviously very wounded and distraught by the whole circumstances, as her parents were going through a divorce at this time, but did her mother really feel that this would be the best option, or was it that she didn't know what else to do, maybe she needed to escape? She sits opposite me, fidgeting, almost non-stop, legs crossed to one side and then instantaneously switching over to the other, arms folded, and the only time they unfolded is to remove the hair in her eyes, or to twiddle uncontrollably with her fingers.

Is Deception Justified? Essay

Everyone characterizes deception differently. One may view it as breaking the trust of a loved one and think of it as mere deceit. Others may accept deception as a way to gain/give happiness. Some may even think of it as part of life. More commonly, deception stands being viewed as hand and hand with â€Å"evil†, this includes, not only viewed by people, but also portrayed in movies and novels from all eras of time. Frequently feelings dealing with deceit –lying or jealousy- creates anger in an individual leading into irrationality. However, can a simple trick or lie for the sake of entertainment or flattery allow deception to be justified? Robert Southey once said â€Å"All deception in the course of life is indeed nothing else but a lie reduced to practice, and falsehood passing from words into things.† (Southey 133) If we look through the famous works of today, we notice deception is the major downfall of main characters or villains. In Shakespeare’s Othello the feelings of deceit and jealousy are prevalent throughout the play by Lago, which ultimately leads up to his actions against other characters of the play. However, many disagree with Robert Southey. A philosophy called utilitarianism refers to what is good for a human being. Therefore, according the philosophy of utilitarianism, if deceiving someone saves a life, or causes happiness to another, or others, then deception is justified. The only problem with this philosophy is, how can one measure one’s happiness against another’s misery? Assuming this deception backfires or the deceiver is not happy or is feeling guilty with the decei t. Lying and deception are extremely common when interacting with another person. Nearly everyday, either associating, or being in contact with another, one can expect to either witness or convey deception. â€Å"Deception can be defined as an intentional verbal message that does not honestly reflect an individual’s actual opinion† (Zuckerman, DeFrank, Hall, Larrance, & Rosenthal, 1979). Elias Conetti once stated, â€Å"Adults find pleasure in deceiving a child. They consider it necessary, but they also enjoy it. The children very quickly figure it out and then practice deception themselves† (Conetti, Elias, 1980) Deception may be not justified, but some believe deceit to be acceptable, for example mothers may lie to there kids to eat there vegetables or do there homework. However, the other forms of deception can cause harm to a person emotionally and thus shouldn’t be justified or accepted. Even if, the conveyor thinks he is morally just. Robert Rusking stated â€Å"The essence of lying is in deception, not in words† which means that lying is deception itself whether its trying to make your friend feel better on a bad day, or containing the intentions of being cruel. Deception is nothing other than deception, and shouldn’t be justified no matter what ethics. In a philosophy called Kantianism, developed by a German philosopher Immanuel Kant, the belief is that â€Å"People should be treated as an end and never as a mere means to an end†(Kant, Immanuel 1785 (Kant)). In other words, it is unethical to use people for your own personal gain because people are valuable in themselves. Assuming from the beliefs of Kantianism, deception is only justified if you justify your own deception in other words if you think you have the right to be told the truth, then you are also bound to tell the truth. In conclusion, to me I believe in the utilitarianism philosophy, because if deception saves a life, then the deception is a necessity. Everyday we are deceived, whether by phony politicians or lousy advertisements on TV. Some deception is cruel, irrelevant, and unnecessary, but some can really make someone or people happy. I believe that anything that helps humanity should be justified, but deception just for cruel or bizarre intention shouldn’t be. Therefore, I decided deception can be justified, but only for good intentions. Work Cited Page Mazur, Tim C. â€Å"Lying and Ethics.† Lying and Ethics. N.p., 2010. Web. 03 Sept. 2012. . â€Å"Utilitarianism.† Dictionary.com. Dictionary.com, n.d. Web. 03 Sept. 2012. . â€Å"Grounding for the Metaphysics of Morals.† SparkNotes. SparkNotes, n.d. Web. 03 Sept. 2012. . Canetti, Elias. â€Å"Quotation by Elias Canetti.† Dictionary.com. Dictionary.com, n.d. Web. 03 Sept. 2012. â€Å"Essays.cc – Utilitarianism V. Kantianism.† Essays.cc – Utilitarianism V. Kantianism. N.p., n.d. Web. 03 Sept. 2012. . Aufderheide, Patricia, Peter Jaszi, and Mridu Chandra. â€Å"Honest Truths: Documentary Filmmakers on Ethical Challenges in Their Work [2009].† Center for Social Media. N.p., n.d. Web. 03 Sept. 2012. . Decaire, Michael W. â€Å"The Detection of Deception Via Non-Verbal Deception Cues – Law Library 1999-2001.† The Detection of Deception Via Non-Verbal Deception Cues – Law Library 1999-2001. N.p., 30 Nov. 2000. Web. 03 Sept. 2012. .

Conflict Resolution Studies (Review of Film Chocolat)

Conflict Resolution Studies Take Home Exam Ââ€" Chocolat Introduction The character of choice when analyzing conflict in the film Chocolat is Vianne (The world famous Juliette Binoche). Vianne is the mother of a small girl named Anouk who moves to a small town in France to open a Chocolaterie or a chocolate store. While there Vianne changes the views of a town and its people while dealing with conflict at every turn. The best way to understand Vianne and her conflict is to follow the guide and questions below which open up insights to the movie and its star. 1. What is Viannes perspectives/lenses on conflict ? Vianne shows herself to be a very kind and loving woman. Not only is the nature of her business to find out the desires of†¦show more content†¦The old woman who is leasing her the apartment and store found out that Vianne attacks head on when she didnt flinch at the old ladies poor attitude and instead changed it with a hot cup of cocoa. 5. How does the characters communication skills or lack of them help/hinder them achieving their goals? The communication skills demonstrated by Vianne are amazing. She is able to converse with children and elderly alike. She treats women and men as equals. She is able to dissect hidden meanings from peoples words and can smooth over problems form anyones life regardless of circumstance. She communicates so well that she is able to influence a whole town to see the brighter side of life and how to further enrich day to day living. Vianne becomes so successful that the town even comes to the understanding at the end of the movie that they were wrong to ostracize her and that she shows the way of god through love. Her skills helped a town become stronger and more accepting of life and difference. 6. How was change accomplished in the movie? Change in the movie was accomplished by the broadening of perspectives. Vianne and her daughter used positive communication, open mindedness and chocolate to change the views of the town. More specifically Vianne opened a chocolate store and began to offer people what they need to change their lives for the better. For one lady it was unrefined cocoa nibs to spice up