Final answer:
The question requires calculating the change in the vertical component of velocity of a train, but additional information, like acceleration, is necessary to provide an exact value for DeltaY.
Step-by-step explanation:
The question involves calculating DeltaY, which represents the change in the vertical component of the train's velocity. The initial vertical component of velocity is given as Uy = -5.42 m/s, indicating downward motion. The task involves using principles of kinematics to determine the displacement or change in the train's position along the vertical axis during its acceleration period.
To solve for DeltaY, we need to apply kinematic equations which may include the initial velocity, time of travel, and the vertical component of the final velocity. However, additional information, such as the acceleration, would be required to perform the calculation. Without this key piece of information, we cannot provide an exact numerical answer for DeltaY.