In what time will a train 125 m long cross an electric pole, it its speed be 130 km/hr? Choose the most appropriate option: A) 3.5 B) 2.7 C) 2.9 D) 2.3 E) 2.1
Speed = 130 * 5/18 = 36 m/sec   Time taken = 125/36   = 3.5 sec.   3.5nswer: 3.5
<result>A</result>
In what time will a train 125 m long cross an electric pole, it its speed be 130 km/hr?