IYPT 1989, Задачи на турнира — Задача 8. Metro
Problems for the 2nd International Young Physicists’ Tournament
Внимание: Бележка към темата
The original header prints 1988, although this is the 2nd IYPT problem set for 1989; the edition’s note [1] and its bibliography identify the 1989 event. The printed header is retained.
Critical edition
Olympiets Youth Center, Moscow, Soviet Union; March 24‒April 2, 1988 [1]
Critical edition: translated, restored, and commented text [2]
FINAL DRAFT. — Please do not re-publish. Suggestions and criticism welcome
Translated, edited and commented by Ilya Martchenko. The original edition’s historical notes, sources and acknowledgments are retained with problem 1.
Епиграф
Squamps are hunted from the inside only.
S. Lem [3]
Условие
Suggest the methods and measure the speed of a metro electric train midway between two stations. The same is to be done for a bus in which you are going, if there are no reliable distance signs on the route.
Note [13]
The station names were specified in the problems for the Correspondence Round [Kvant 1988]: “Suggest methods and measure the speed of an underground train between the stations Universitet and Prospekt Vernadskogo (it is for the Muscovites.)” The entire problem reads shorter in the 1990 Czech and Slovak, and even more shortened in 1996 Czech and in both English translations: “Underground. Determine the speed of the underground train between two stations” [RMF 1990], [TMF 1996] and “Metro. Determine the speed of the train between two metro stations” [Kluiber 1996], [Proceedings 2006]
Решение
Внимание: Непълно решение
В архива няма официално решение на тази задача.
Оригинал в Архива: 1989.pdf