3.2. A train with a mass of 350 Mg is attached to a locomotive with a draw bar. The train is uniformly accelerated from rest on a horizontal track. The resistance to motion is 12 N per Mg of the mass of the train. The force in the draw bar is 35 kN. Calculate the following: 3.2.1. The acceleration of the train 3.2.2. The force required to pull the train at a constant velocity
