Net force is the total combined external force acting on an object when multiple forces are applied. It is different from the force measured by a force platform.
When multiple forces act on an object, the forces combine to give the net force. The net force is the total combined external force acting on the object. It takes into account all the external forces acting on the object, including forces from outside the system. This is different from the force measured by a force platform, which only measures the force applied directly to the platform itself.