Answer:
Part A:

Part B:

Part C:

Step-by-step explanation:
Part A:
We will use the following kinematics equation:

Part B:
We will use the same kinematics equation:

Part C:
The total time takes is 2t.
So the train moves a distance of

And the car moves a distance in Part A and in Part B:

So the total distance that the car traveled is

The difference between the train and the car is
