A 90 m long train takes 25 sec to pass a pole. Let me calculate the speed of the train in km/hr?
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Answer: Speed = Distance/time
Speed = 90/25
Speed = 3.6 m/s
To convert m/s to km/s we multiply the value by 18/5 or 3.6,
3.6 * 3.6 = 12.95 km/h
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