What are the forces that make soccer balls curve when kicked? What materials are soccer balls made with ?
2007-01-30 08:49:06 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
Soccer balls are made with lots of defferent materials. They have everything from genuine leather to plastic. (Along with all of the in between mixes) The curve that happens when a ball is kicked correctly is because of the rotation of the ball. The Spin causes an uneven friction with the air around it. You would have to break the spin into x and y vectors, and also show the force of the air pushing back.
2007-01-30 08:59:22 · answer #1 · answered by betatesterwood 3 · 1⤊ 0⤋
Of course if you kick a soccer ball straight ahead and up without spin it will curve up and then down due to gravity (you knew that!). The curve you are interested is likely similar to the curve in the path of a baseball and is caused by the spin of the ball. The ball's spin adds to relative air speed on one side and subtracts from it on the other. This causes a slight partial vacuum on one side of the ball where speed relative to the air is greater and creates a "lift" similar to that which lifts an airplane wing. The Bernoulli principle indicates that pressure will decrease where air velocity increases.
2007-01-30 17:58:53 · answer #2 · answered by Kes 7 · 0⤊ 0⤋
Soccer balls are generally made of leather stitched together in sections,the inside of the ball is a rubber "bladder" with a valve for inflation not unlike a car tyre inner tube , except it's round.
The way you kick the ball generally causes the ball to curve.If you kick the ball with the inside or outside of your foot it will curve in opposite directions.
That is the basic theory , personally , I played as a full back(defence) for years and was more used to kicking opposition forwards , and , no matter which side of my foot I used the opponent generally didn't curve in any direction !!!!!
2007-01-30 17:03:20 · answer #3 · answered by plopper 3 · 0⤊ 0⤋
This should be in physics, not engineering but...
Two forces duke it out when a soccer ball is kicked. The force of you kicking it, and gravity. Eventually, gravity wins. Soccer balls are made of synthetic rubbers nowadays.
2007-01-30 16:56:11 · answer #4 · answered by Anonymous 3 · 0⤊ 0⤋
The force you are talking about are aerodynamic forces called "magnus effect".
The spinning will cause a variance in air pressure around the ball, and the variances in air pressure changes the path of the ball.
2007-01-31 08:11:04 · answer #5 · answered by H_A_V_0_C 5 · 0⤊ 0⤋