Question
Download Solution PDFA train is running at a speed of 129 km/h on a straight railway track, and a small car on a parallel road is running at a speed of 60 km/h. How long (in seconds, rounded off to the nearest integer) will the train take to cross the car completely if the train is 943 m long and they are running in the same direction?
Ignore the length of the car as compared to the length of the train.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven
Train speed = 129 km/h
Car speed = 60 km/h
Train length = 943 m
Concept:
Time is taken to cross = Distance / Relative Speed
Calculation:
Relative Speed = Train Speed - Car Speed = 129 km/h - 60 km/h = 69 km/h = 69 × (1000/3600) m/s
Time = Train Length/Relative Speed = 943/19.17 ≈ 49 seconds
Therefore, the train will take approximately 49 seconds to completely cross the car.
Last updated on Jul 8, 2025
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