Dynamic lift due to spinning is ?

Dynamic lift due to spinning is a phenomenon that occurs when an object, such as an aircraft or a spinning ball, generates additional lift or aerodynamic forces as a result of its rotation. This phenomenon is often referred to as the "Magnus effect." The Magnus effect is named after the German physicist Heinrich Gustav Magnus, who first described it in the 19th century.

When an object spins through a fluid medium, such as air or water, it creates a pressure difference on its surfaces. This pressure difference results in a net force perpendicular to the direction of motion, which is called the Magnus force or dynamic lift. The Magnus force can either enhance or reduce the lift and stability of the object, depending on the direction of the spin and the orientation of the object.

For example, in the case of a spinning soccer ball, the Magnus effect causes the ball to curve or bend in flight. If the ball spins clockwise when viewed from above, it will experience a Magnus force that pushes it to the left. Conversely, if it spins counterclockwise, it will curve to the right. This phenomenon is commonly observed in sports like soccer, baseball, and tennis.

In aviation, the Magnus effect can also be relevant. Some aircraft, such as helicopters and autorotation-capable gliders, use the Magnus effect to generate additional lift or control their descent. By varying the rate of rotation or the angle of attack, pilots can manipulate the Magnus effect to achieve specific flight characteristics.

In summary, dynamic lift due to spinning is a result of the Magnus effect, where the rotation of an object through a fluid medium generates additional aerodynamic forces that can impact its motion and behavior.