A train running at the speed of 60km/hr crosses a pole in 9seconds.what is the length of the train?

To find the length of the train, we first need to convert the speed of the train from km/hr to m/s.

60 km/hr = 60 * 1000 m / 3600 s = 16.67 m/s

Now, we know that the train crosses a pole in 9 seconds. This means that the length of the train is equal to the distance it travels in 9 seconds at a speed of 16.67 m/s.

Length of the train = speed * time
Length of the train = 16.67 m/s * 9 s
Length of the train = 150 meters

Therefore, the length of the train is 150 meters.

Speed = 60 km/hr = (60 - 5/18) m/sec = 50/3 m/sec
Length of the train + Length of the pole = (50/3 - 9) m = 150 m
Length of the train = 150 - Length of the pole
Therefore, the length of the train cannot be determined unless the length of the pole is given.