Question:
In what time will a train 100 m long cross an electric pole if its speed is 144 km/hr :
A2.5 sec
B3.2 sec
C6.1 sec
D2.9 sec
Answer:
A. 2.5 sec
Explanation:
Speed of the train =144 kmph=144×18/5=40 m/sec Length of electric pole =100 meter Time taken to cross the electric pole = 100/40 = 2.5 seconds