The given value of v=10m/s^2 appears to be incorrect, as it represents acceleration rather than velocity. Velocity is typically measured in meters per second (m/s), while acceleration is measured in meters per second squared (m/s^2).
If we assume that the train is moving at a constant velocity of 10 m/s, we can calculate the net force acting on it. However, we'll need additional information, such as the frictional force or any other forces acting on the train. Without this information, we cannot determine the net force accurately.
If you provide more details about the forces acting on the train or clarify the value for velocity, I can assist you further with the calculations.