To determine the net force acting on an object, we can use Newton's second law of motion, which states that the net force (F_net) acting on an object is equal to the product of its mass (m) and its acceleration (a). In this case, since the train is moving at a constant velocity (v), its acceleration is zero, and therefore the net force acting on the train is also zero.
Mathematically, we can express this as:
F_net = m * a
Given: m = 5000 kg v = 10 m/s²
Since the acceleration is zero, we have:
F_net = m * a = 5000 kg * 0 = 0 N
Therefore, the net force acting on the train is 0 Newtons (N).