To find the time taken by the train to cover a distance of 400 meters at a constant speed of 8 m/s, we can use the formula:
Time = Distance / Speed
Plugging in the given values:
Time = 400 meters / 8 m/s
Calculating the result:
Time = 50 seconds
Therefore, it takes 50 seconds for the train to travel a distance of 400 meters at a constant speed of 8 m/s.