A short train an engine plus four cars is accelerating at

Question

Solve the all parts of following question given below:

Problem: A short train (an engine plus four cars) is accelerating at 2.00m/s². The mass of each car is 3.10 × 10⁴ kg, and each car has negligible frictional forces acting on it. In solving this problem, note the importance of selecting the correct set of cars to isolate as your object.

Part A: What is the force of the engine on the first car?

Part B: What is the force of the first car on the second car?

Part C: What is the force of the second car on the third car?

Part D: And what is the force of the third car on the fourth car?

Please explain all steps to determine the force of the second car on the third car.