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 and (b) the acceleration of the train.
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Hence, the net accelerating force is 35000 N. The engine exerts a force of 40000 N on all the five wagons. Hence, the acceleration of the wagons and the train is 3.5 m/s2. Therefore, the force exerted by wagon 1 on the remaining four wagons is 28000 N.
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