A train travelling at 60 kilometres per hour crosses a pole in 9 seconds. What is the train's duration?
A.120 metres
B. 180 metres
C. 324 metres
D. 150 metres
Answer:D
A train travelling at 60 kilometres per hour crosses a pole in 9 seconds. What is the train's duration?
A.120 metres B. 180 metres C. 324 metres D. 150 metres
Explanation: Speed = 60/18 x 5 m/sec = 50/3 m/sec.The train's length equals (Speed x Time). 50/3 x 9 m = 150 m is the train's length.