A train travels 6 meters in the 1st second of travel, 6 meters again during the 2nd second of travel, and 6 meters again during the 3rd second. Its acceleration is
To determine the acceleration of the train, we can analyze the distance it travels over time.
The train travels 6 meters in each of the first three seconds:
Since the train travels the same distance (6 meters) in each second, it indicates that the train is moving at a constant speed.
When an object moves at a constant speed, its acceleration is zero because acceleration is defined as the change in velocity over time.
Thus, the acceleration of the train is:
[ \text{Acceleration} = 0 , \text{m/s}^2 ]