The effects of impulse in sport


Impulse is a very subtle and little-known aspect of our daily life. Impulse can be seen in a variety of things such as cars, projectiles, rockets, sports, etc. In sports, American football, volleyball, basketball and all other sports, the impetus is being used. For example, one can observe an impulse in one’s shoes: the cushion between the ground and the foot reduces the amount of force exerted on the foot by a reactionary force. The same data can be seen in padded sleeves: volleyball knee pads, soccer compression wear, jockstraps, etc.

Impulse is a vector quantity defined as the product of the force acting on a body and the time interval during which the force is exerted. Impulse is part of Newton’s second law and goes hand in hand with momentum. The S.I. unit for Impulse is the Newton-Second.

A force causes acceleration and a change of speed as long as it acts. Therefore, a resulting force that is applied over a longer period of time will produce a larger linear moment change than the same force applied briefly: the moment change is equal to the product of the average force and the duration. The same effect works in reverse: a small force applied for a long time produces the same change in moment (or the same change in momentum) as a larger force applied briefly. For example, in American football, a linebacker will charge and tackle the quarterback. The force of the impact can potentially cause concussions or even break bones if the quarterback is not covered with padding and protective gear. However, a force can be great enough to cause the aforementioned injuries. Suppose a 150 kilogram (kg) linebacker loads at a quarterback at 5 meters per second (m / s), the linebacker would apply a force of 750 newtons (N): Force = Mass x Acceleration. Now compare this force to a 12 gauge shotgun, the shrapnel of which would apply a force of around 500 m / s. As you can see, the force exerted by the linebacker is enormous. However, the linebacker does not apply that true force. With a series of padding and / or padding, the force is reduced to a minimum. The longer it takes for the force to pass through the padding and connect to the body, the less force the person will receive. For example, if it takes 3 seconds for the force to connect, the force will be reduced to 250 N.

To conclude, Impulse is a fundamental element that enables most aspects of our daily life.

Source by Alex Shaham


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