Physics in a penalty

In 1998, the World Cup in a penalty to be cruel way to determine the winner. England in penalty shootout defeat to old rivals again in Argentina, where the penalty shoot Batty did not shoot one goal. At this time, a British gentleman Delikelao Dr. the world's leading nuclear experts), unable to remain in mind anger. England football coach pick up a pen to write the following letter: Dear Hoddle coach: Please allow a former candidate for the Nobel Prize in Physics (1994) explained to you a simple and obvious truth of physics.

I led you to not know much about the England situation, particularly in the mode of training your penalty. Lost to Argentina but you look at this ball, you lack some basic scientific concepts. England is due to ignorance and lack of education were eliminated, but we really is a very high cultural level of the traditional country. From a physical point of view, the highest success rate of penalty should be close to the ground flying into the door. A physical good goalkeeper can easily jump up or to the right and left, the ball flutter out.

But when he hands down the net smash, his focus to rapidly decrease, while the hands move down the average speed of only 32 feet per second (1 foot is about equal to 0.304 m). This move by the influence of gravity, the speed and the speed of the ball forward setting very different, so close to the floor of the penalty is the goalkeeper saved the ball the hardest. However you choose Batty, Batty then choose the lowest probability of a successful semi-golf. Perhaps you do not believe that Baty shot of that moment, I have felt the England defeat.

This is a failure of basic scientific knowledge poor. If you think my description is a waste of time, then I would rather talk to my mother Qupei. She is almost 90 years old, can still insist on watching a football game ... ... although her health adversely. If you have been before the game, some simple mathematical analysis, or had a little read materials on the mechanics, then you should be able to guide the team to play well every penalty.

In this way, Argentina is impossible to remain in France. Finally to you, for example, remember Baggio's two penalties it? The last World Cup finals, he played the top door corners, the results hit the ball fly. The Chilean team, he kicked a ball close to the ground, although the Chilean goalkeeper made a correct response. But can not get the ball jumped out - his leg strength and gravity can not tune. Roberto Baggio penalty kicks will be taken after this the correct scientific way. After returning home, you and your team members or with a good tutorial about the physical it.