Final answer:
The net force acting on the wagon is 450 N.
Step-by-step explanation:
The net force acting on an object can be determined by summing up all the forces acting on it. In this case, we have three forces acting on the wagon: 200 N, 100 N, and 150 N. To determine the net force, we need to add these forces together.
200 N + 100 N + 150 N = 450 N
Therefore, the net force acting on the wagon is 450 N.
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