Final answer:
The best way to pull an object across a flat surface is to drag the object. When an object is dragged, the force of friction between the object and the surface helps in moving the object.
Step-by-step explanation:
The best way to pull an object across a flat surface is to drag the object.
When an object is dragged, the force of friction between the object and the surface helps in moving the object.
Friction is the force that opposes the motion of two surfaces in contact, and in this case, it helps in preventing the object from slipping and allows it to move.