Answer:
The distance covered by the train can be calculated using the formula for distance traveled under uniform acceleration: distance = initial velocity * time + 0.5 * acceleration * time^2. Plugging in the values given in the problem, we get distance = 10 m/s * 5 s + 0.5 * 4 m/s² * (5 s)² = 50 m + 50 m = 100 m. So the train covers a distance of 100 meters in that time.