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Q52 (CISF/2024) Science & Technology › Basic Science (Physics, Chemistry, Biology)

A train with a length of 335 m is travelling at a speed of 90 km/h. What is the time taken by the train to pass a 290 m long platform?

Explanation

To find the time taken by the train to pass the platform, we use the formula: Time = Total Distance ÷ Speed.

  • Total Distance: When a train passes a platform, the total distance covered is the sum of the length of the train and the length of the platform.
    Total Distance = 335 m + 290 m = 625 m.
  • Speed Conversion: The speed is given in km/h, which must be converted to m/s to match the distance units.
    Speed = 90 km/h = 90 × (5/18) m/s = 25 m/s.
  • Calculation: Time = Distance ÷ Speed = 625 m ÷ 25 m/s = 25 seconds.

Thus, the time taken by the train to pass the platform is 25 seconds.

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