Kicking in soccer is influenced by
the principles of range of motion, velocity, Newton’s laws of motion,
angular kinetics, the Magnus effect, and segmental interaction. Velocity
is one of the main principles of biomechanics identified in an in-step
soccer kick. Velocity relates to the in-step kick in terms of how
quickly and in what resultant direction the ball moves (Blazevich,
2010).
Newton’s three laws of motion are all present when performing the skill of an in-step soccer kick. The first law of motion is called the law of inertia. It states that ‘any object at rest, will tend to remain at rest, and any object in motion will tend to stay in motion, unless acted on by an unbalanced force’. In terms of the in-step soccer kick the unbalanced force is gravity, wind, air resistance, and in most cases the players foot. The player will use the muscles in their body to create a force to move their leg and kick the ball. If the ball is at rest it will continue to stay at rest, but once the ball has been kicked and is in motion, it will continue to stay in motion until gravity pulls it down (Tanglent, 2013). Newton’s second law of motion states ‘the acceleration of an object is proportional to the net force acting on it and inversely proportional to the mass of the object (F=ma) (Blazevich, 2010). Explaining this law further in terms of the in-step kick, the acceleration of the ball (a) is determined by the force applied (F) divided by the mass of the object that is being moved (m). If the ball has a lot of mass, it will require more force to accelerate. In terms of soccer it is important to understand this law of motion because if you want the ball moving fast, you must apply force, and if you want to ball to move just a little bit you must apply less force. Finally Newton’s third law of motion, 'for every action, there is an equal and opposite reaction'. This means that every time you kick the soccer ball, the ball kicks you back with the same amount of force.
Newton’s three laws of motion are all present when performing the skill of an in-step soccer kick. The first law of motion is called the law of inertia. It states that ‘any object at rest, will tend to remain at rest, and any object in motion will tend to stay in motion, unless acted on by an unbalanced force’. In terms of the in-step soccer kick the unbalanced force is gravity, wind, air resistance, and in most cases the players foot. The player will use the muscles in their body to create a force to move their leg and kick the ball. If the ball is at rest it will continue to stay at rest, but once the ball has been kicked and is in motion, it will continue to stay in motion until gravity pulls it down (Tanglent, 2013). Newton’s second law of motion states ‘the acceleration of an object is proportional to the net force acting on it and inversely proportional to the mass of the object (F=ma) (Blazevich, 2010). Explaining this law further in terms of the in-step kick, the acceleration of the ball (a) is determined by the force applied (F) divided by the mass of the object that is being moved (m). If the ball has a lot of mass, it will require more force to accelerate. In terms of soccer it is important to understand this law of motion because if you want the ball moving fast, you must apply force, and if you want to ball to move just a little bit you must apply less force. Finally Newton’s third law of motion, 'for every action, there is an equal and opposite reaction'. This means that every time you kick the soccer ball, the ball kicks you back with the same amount of force.
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