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Let me begin by telling you all the topic of my discussion. (Write on board, “The techniques and physics involved in high jumping”) In case any of you aren’t aware high jump is an Olympic sport that is contested around the world by people of all ages. In this oral presentation I am going to explain the two most common types of high jumping style and explain some of the physics and techniques utilized by these styles…………. Ok then, let’s begin! The high jump event has been dominated by two main styles over the years; these are the straddle technique and the Fosbury flop. Previous to the 1968 Olympic Games in Mexico City, the straddle technique was used, but then a little known young athlete by the name of the Dick Fosbury overcame a high quality field to absolutely shatter the world record and take the gold medal using his new technique. This new technique later renamed the Fosbury flop revolutionised the high jump world. This style was found to be far more effective and easier to learn than the previous straddle technique. For simplicity the straddle technique can be broken into two main phases, these are; The Approach and Clearing the Bar. I will now explain each process and the role physics plays in each. The Approach: The approach involves three different aspects: speed, length and angle. Each plays an important role; the speed refers to the final velocity of the athlete on the take off step, the length how many steps are involved in the run and the angle is the angle at which the athlete runs towards the bar at. In the straddle approach it is important to remember that the approach to the bar is in a linear line at an angle of about 35 degrees. Speed in particular is very important in this stage, since we when we are running are trying to build our momentum up. If we look at the momentum formula (p=mv) we can see that when the mass is fixed the momentum and the final velocity are proportionate and hence a greater final velocity results in greater momentum.
Approximate Word count = 1334
Approximate Pages = 5.3
(250 words per page double spaced)
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