Magnus Effect. The Magnus effect is why soccer players can bend a soccer ball into the goal around a 5-person wall and why baseball pitchers can throw a breaking ball pitch. A spinning object in motion exerts a net force on the air, which according to Newton's 3rd law exerts an equal and opposite force back on the moving and spinning object, altering its trajectory.
The Physics Of Soccer – The Magnus Effect. When a soccer player kicks a ball off-center it causes the ball to spin. The direction and speed of the spin will determine how much the ball curves during flight. It's the same principle as a curve ball in baseball.
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How do soccer players (or football players internationally) bend the ball in the air? Physics! It’s specifically called The Magnus Effect, “the commonly observed effect in which a spinning ball (or cylinder) curves away from its principal flight path.”.
Ever seen a ball curve or bend in the air during a soccer game and wondered what exactly makes it curve?Find Kyle at: http://twitter.com/kylekitzmillerInstag...
From here two important physics concepts come into play, Bernoulli's principle and the "Magnus effect ". Bernoulli's principle states that as the velocity of a fluid (air) increases, the pressure exerted by that fluid (air) decreases. As the ball moves forward, air flows by it on all sides.
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The effect is named after the scientist who first observed it in a laboratory in the 1850s. The Magnus effect explains the side-force on a sphere that is both rotating and moving forward. We’ll use it to analyze the FIFA World Cup™ match ball. Where Sports Meet Engineering
The Magnus effect, named for the first physicists to experimentally explore the phenomenon, explains how projectiles can curve when moving through a fluid (like air). Whenever a ball is spinning through the air, the Magnus "force" will push it in a direction perpendicular to the direction of movement.
Without that, this classic piece of the soccer player’s arsenal goes away, as Bush points out in his article, “The Aerodynamics of the Beautiful Game,” from the volume “Sports Physics,” published by Les Editions de L’Ecole Polytechnique in France. “The fact is that the Magnus Effect can change sign,” Bush says.