What does the push-pull force 400n mean? Push-pull force 400N is a physical term, which means a force of 400 Newtons applied. Newton is the unit of force in physics, which is equal to the force of 1 m/s^2 with an acceleration of 1 kg of mass. Therefore, a force of 400N can produce about 40 kilograms of mass, which can be used to push or pu