Use Pen And Paper
A train of 50 meter length starts from a station in the acceleration of 10 ms^-2 and passes a bridge of 100 meter length situated 200 meter far from the station and then it decreases its velocity in the deceleration of 5 ms^-2.In the same time and from the same place a car starts its journey in the acceleration of 5 ms^-2 by a road beside the station.
What time (in seconds) will the car need to pass the train?
The answer is 20.01.
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