KN0175 trains each 50m long are travelling in opposite directions with respective velocities 10 m s and 15 m s The time of

Question

KN0175 trains each 50m long are travelling in opposite directions with respective velocities 10 m s and 15 m s The time of crossing is 1 2 s 2 4 s 3 2 3 s 4 4 3s 175 Two 2020 2

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