Moving a chair is easier by pulling rather than pushing due to the vertical force component created when pushing, which increases friction. When pushing, the downward force on the chair's legs adds to the normal force, resulting in greater resistance against movement. In contrast, pulling the chair minimizes this vertical force, reducing friction and making it easier to slide. If both actions were performed perfectly in the same plane, the difficulty would be equal, but practical application shows pulling is more efficient. Ultimately, the mechanics of force and friction favor pulling as the easier method for moving chairs.