Question

A train 150m long is running at a speed of 90 km/h. Find the time taken by the train to cross a tel.

A) 1.5 hours
B) 1.0 hours
C) 0.5 hours
D) 2.0 hours

Answer 1

To find the time taken by the train to cross a tunnel, divide the length of the train by its speed. The time taken is 6 seconds.

Step-by-step explanation:

To find the time taken by the train to cross a tunnel, we need to calculate the time it takes for the train to cover a distance equal to its own length.

First, convert the speed of the train from km/h to m/s by dividing it by 3.6. So, 90 km/h = 90/3.6 = 25 m/s.

Next, use the formula: time = distance/speed. The distance the train needs to cover is its length, which is 150m. The speed is 25 m/s.

Substituting these values into the formula, we get: time = 150m / 25 m/s = 6 seconds.

Therefore, the time taken by the train to cross the tunnel is 6 seconds.