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Saturday, 19 april 2008

The flu between two trains

Proposed by GabiOffline
(22 comments)16.975 times displayed

(ceva usor, de week-end:)
Doua trenuri pornesc simultan, unul in directia celuilalt plecand din doua gari A si B, aflate la o distanta de 100 km intre ele, si mergand fiecare cu o viteza de 50 km/h. O musca pleaca in acelasi timp din gara A spre gara B zburand de-a lungul liniei de cale ferata cu o viteza de 70 km/h. Cand intalneste trenul care inainteaza dinspre B (... si se sperie) face cale intoarsa zburand spre A. Si tot asa zboara de la un tren la altul pana cand, in cele din urma, acestea se intalnesc (... si strivesc musca). Ce distanta totala a parcurs musca ?


Tags: fly, train, distance
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