Sport orienteering value theory the energy and the

Sport orienteering: value, theory, the energy and the Physics and Mathematics profile I perform the work: The schoolgirl 11 Class B MBOU gymnasium № 32 Maksimiuk E.

Content Introduction The first goal: tell about orienteering The second goal: "The theory of the perfect run» The third goal: Calculation of energy consumption athlete the passage of a distance Сonclusion Bibliography

Introduction Relevance: Orienteering - sport, which has recently begun to spread across the planet, yet most people do not know about it. Also, many athletes think of the "Theory of the ideal running" if it exists. Research Problem: The problem is lack of knowledge of this sport, as well as the desire to learn how to win Hypothesis: The method runs in orienteering can not be completely decomposed into mathematical and physical part due to some controversy regarding the exact sciences. Methods: Analysis of literature, observation, experiment.

Do you know what is orienteering? Opinion Yes 19% No 81%

The first goal: tell about orienteering

a brief history of the sport

Origin orienteering as a sport can be carried to the end of the XIX century, when they began to be competitions between military garrisons in Sweden, Norway, Great Britain The first mass civil orienteering competitions were held October 31, 1897 Sports Club Talve near Oslo. This birth of modern orienteering competition took place in 1918. Mayor Ernst Killander decided to use the natural environment of the Swedish countryside for a new kind of sport, based on his military experience. May 21, 1961 at the Congress in Copenhagen based International Orienteering Federation. 10 European countries have become the first members of the federation

What should I do in this sport? B А

What you can get? muscles and health clean your body with fresh air Get: third, second or first junior level; third, second or first adult level; Candidate Master of Sports develop a logic

Have you ever thought about the fact that we can win, not thinking at a distance? Opinion 31% 69% Yes No

The second goal: "The theory of the perfect run»

Hypothesis: The highest probability of winning the competition is when the athlete went the distance in the shortest possible time: W (t) = min (t 1, t 2… tn);

Conditions «template» It does not matter where and in which time I run.

«only one template» We choose “Go left”

We rewrite our theory with t=s/u The highest probability of winning the competition is when the athlete takes the shortest distance. W (s) = min (s 1, s 2… sn);

That is azimuthally pass from CP to CP But! The azimuthal flow is not always applicable It turns out that there is a shortest path, and theory is not true

The third goal: Calculation of energy consumption athlete the passage of a distance

How much energy do I spend, running a distance Е(dis)=Е(kin)+Е(s)Е(start)-E(CP) Е(dis) – all spent energy Е(kin) – kinetic energy Е(s) – energy for passage way Е(start) – internal power supply E(CP) – energy obtained at rest on the CP

We write all the details: Е(kin)=(m*u^2)/2 E(s)=А(s)=F*s=mgs E(start)= 10000 J E(CP)= N/t= 1000/tз.

Е(kin)=(m*u^2)/2 We do not know the speed But we know 1 / u, expressed as min / km u=

E(s)=А(s)=F*s=mgs Unknown s On the map, we note how we ran and calculate length using odometer or alternative methods of finding the length of a curve s= 4 km

If you do not remember how you run or you just too lazy to count, then use the data in the map legend s= 4, 8 km

E(CP)= N/t= 1000/tз 10 -20 sec Those who already know something tз Those for the first time in the woods 10 -25 sec

3 -7 sec Those who are well oriented <=1 sec tз Masters

Calculation : Е(dis)=(m*u^2)/2 +mgs-10000 -1000/tз= (55*1, 84^2)/2+55*10*1800 -10000 -250= 93, 104+99000 -10000 -250=979843, 104 J

Conclusion It turns out that theory is false. And does it make sense? Why do not we do everything for fun? "During 6 years in orienteering, I never wanted to win, simply run for myself. So I got their prizes, not chasing the championship, and just relaxing " A. Dessert

Bibliography • https: //ru. wikipedia. org/wiki/%D 0%A 1%D 0%BF%D 0%BE%D 1%80% D 1%82%D 0%B 8%D 0%B 2%D 0%BD%D 0%BE%D 0%B 5_%D 0%BE %D 1%80%D 0%B 8%D 0%B 5%D 0%BD%D 1%82%D 0%B 8%D 1%80 %D 0%BE%D 0%B 2%D 0%B 0%D 0%BD%D 0%B 8%D 0%B 5 • http: //fso 39. ru/, • http: //o-kubok. ru/ • vk. com/orient 39 • www. ecocentr 39. ru › Туризм › Спортивное ориентирование • www. ambersport. ru • www. newkaliningrad. ru ›. . . › Спорт/Разное