Question

When the mover pushes the box, two equal forces result. explain why the box moves even though the forces are equal and opposite?

Answer 1

The reaction force from the box may be equal and opposite, but it does not act on the box, it acts on the person. The force exerted by the person is on the box. Therefore, despite the fact that the forces are equal and opposite, because they are not on the same object, motion occurs.