Question

A train, 180 meters long, is running at a speed of 60 km/h. How long will it take to cross a pole?

A) 18 seconds
B) 24 seconds
C) 36 seconds
D) 45 seconds

Answer 1

To determine how long it will take for the train to cross a pole, we need to find the time it takes for the front of the train to pass the pole. It will take approximately 11 seconds for the train to cross the pole.

Step-by-step explanation:

To determine how long it will take for the train to cross a pole, we need to find the time it takes for the front of the train to pass the pole.

First, we convert the speed of the train from km/h to m/s by multiplying it by 1000/3600.

60 km/h * (1000 m/1 km) * (1 h/3600 s) = 16.67 m/s

Next, we divide the length of the train by its speed to find the time it takes for the front of the train to pass the pole:

180 m / 16.67 m/s = 10.8 s

Rounded to the nearest second, it will take approximately 11 seconds for the train to cross the pole.