Question

Kindly solve this problem for me:
A 8000 kg engine pulls a train of 5 wagons, each of 2000 kg, along a horizontal track. If the engine exerts a force of 40000 N and the track offers a friction force of 5000 N, then calculate:
(a) the net accelerating force;
(b) the acceleration of the train; and
(c) the force of wagon 1 on wagon 2.

Answer 1

Needs to be more specific - the net accelerating force exerted on what by what? Does the track offer this friction force on each wagon, or all the wagons combined?