Physics for IGCSE & O level - Forces And Motion (Section 8 - No. 37)
What is the action force when a person pushes a box across the floor?
The weight of the box.
The force of the floor on the box.
The force of the person on the box.
The friction between the box and the floor.
Giải thích
The action force is the force exerted by the person on the box.