Question

in ___ seconds will a train 100 m long crosses an electric pole if it is speed is 144 kilometre per hour​

Answer 1

In what time will a train 100 metres long cross an electric pole, if its speed be 144 km/hr? Time = (1/10÷144)hrs = 1/1440hrs = (1/1440×60)mins = 1/24mins = (1/24×60)secs = 5/2 secs or 2.5secs.

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