Pressure resistance of air (Air resistance force) is the air force against the resistance movement of the air force, object to the size of a variable to the object's speed and power are the direction opposite to the movement of an object.
Air resistance (Air resistance force) is the force that resists the motion of air, air resistance has a direct transition to the speed of the power and different direction opposite to the movement of objects.
air resistance (Air resistance force) is the air force against the movement of objects, the air resistance จะมีขนาด variable directly to the speed of objects to. , and has the opposite direction to the movement of the object.