Final answer:
The forces acting on a toy truck at rest are balanced, resulting in no motion. This is in accordance with Newton's first law of motion.
Step-by-step explanation:
The correct statement describing the forces acting on the toy truck at rest on the floor is B: The forces are balanced so no motion occurs. When no external force is applied to an object at rest, and the object remains stationary, it means that all forces acting on it are in equilibrium. The forces acting on the truck, such as gravity pulling it down and the floor pushing it up (the normal force), are of equal magnitude but opposite in direction, thus canceling each other out.
According to Newton's first law, also known as the law of inertia, an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by a net external force. Therefore, since the toy truck is at rest with no motion, the net force acting on it is zero.