jasakoder jasakoder

14-12-2022
Physics

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two passenger trains run on parallel tracks. the first at 72 km/h, the second at 90 km/h. A passenger on the first train finds that the carriages of the second train are passing by for 5 seconds. A passenger on the second train finds that it passes the first train in 7. 8 seconds. How long are the two trains.

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