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 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.