Newtons first law states that for every action there is an equal but opposite reaction. In the picture, if I were to push on someone they would naturaly push back with equal force.
As I push someone they push back with equal and opposite force.
As the foil pushes the wind down, the wind pushes the foil up.
Newton’s third law states that for every action, there is an equal but opposite reaction. Forces come in pairs. If you apply a force of ten Newton’s to an object, it pushes back at you with ten Newton’s. When you push a wall, the wall pushes back with an equal but opposite force. When you sit in a chair, the chair pushes up at you with the same force that gravity pulls down on you. Simply whenever you push or pull, there is an opposite force with just as much strength.
As a car drives along the road, the tires push back on the road, but the road also pushes the car forward. When you swim in the water, you don’t just push the water back, the water is pushing you forward with the same force. Same applies to a fish swimming. The water also pushes it forward. When a bird flies, its wings push on the air, and the air pushes on the wings. Space travel was thought to be impossible because there would be no air to push on. The molecules that come out of the engine actually push the rocket and the rocket pushes back, so it works better without air because there is no drag.
As the engine pushes backwards on the rocket, the rocket pushes forward on the engine.
As the propelers push the wind back, the wind pushes the propelers forward
which pushes the plane forward.