A train consists of of 50 cars, each of which has a mass of 6800 kg. The train's acceleration = 0.08 m/s(squared). Ignore friction and determine the tension in the coupling (a) between the 30th and 31st cars and (b) between the 49th and 50th cars.
Net Force = Tension = mass * acceleration
The Attempt at a Solution
Used the equation above I came to:
16320 N for part (a) and
26656 N for part (b).
My problem is, I'm thinking those answers are supposed to be divided by some amount since there are couplings between each car.