Physics question class11a train if moving with a short oh 40kmph.As soon as another train in the opposite direction possess by the window, the passenger of the first train stars his stopwatch and noted the other train passes the window in 3s. Find the speed of the train going in the opposite direction of its length of 75m.

Physics question class11a train if moving with a short oh 40kmph.As

1.	Physics question class11a train if moving with a short oh 40kmph.As soon as another train in the opposite direction possess by the window, the passenger of the first train stars his stopwatch and noted the other train passes the window in 3s. Find the speed of the train going in the opposite direction of its length of 75m.
Answer» wer should be a 50km/hr.Train 1 speed=40km/h = 405/18 m/sTrain 2 speed = v m/sDistance travelled = (SPEED1 + speed2) time [The speeds need to be added as the trains are COMING towards each other]=> 75 = (100/9+v) * 3=> v = 125/9 m/s = 125/9*18/5 km/h = 50km/h

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