From big, bulldozing to small, speedy NFL running backs come in many shapes, sizes but to succeed at football all wedding backs must excel at kinematics. The branch of classical mechanics that defines how objects move because kinematics describes motion.
It describes everything in NFL running back does basically which is his motion up the field as he tries to score kinematics, uses three concepts to define motion position velocity, acceleration position defines location within a space, such as the surface of a football field position would be a running back to the location on the field.
He can change that with his motion in this play let’s define the running backs position where he takes the, off after executing the play however his new position is his opponent’s end zone. The position relative to the goal line changes the set of options that the running back has in terms of the direction he chooses to run a second kinematic concept is velocity which describes both the direction.
Speed of the running back in the NFL one way speed is measured is a player’s time in the 40-yard dash a long long time ago. Almost right at ten years ago a 40-yard dash was 426 to help, illustrate the concepts of kinematics New Orleans NFL american football deuce. McCallister all-time leading rusher for the New Orleans Saints ran the 40-yard dash in front of a high speed phantom camera. You want to stay low as possible while running the 40 particularly the first ten yards, so it’s literally like you’re being shot out of the cannon using.
McCallister’s personal best in the forty four point two six seconds. It’s easy to calculate his speed divide the distance by the time to get his average speed nine point three nine yards per second or twenty-eight point one seven feet per second.
To define the velocity, simply add a direction twenty eight point one seven feet per second north. When we talk about speed, we’re talking about the magnitude of velocity, then its direction is dictated by where the running back goes on the field. Great speed is used to elude tack nfl national football league.
When you have speed, you have very good speed that five-yard plate for most backs become. Becomes a 50-yard play also helpful is the ability to cut or suddenly change directions that helps you make moves against the defender to helps you stay free fleeing tackle beyond position. Velocity the third kinematic concept is acceleration, which describes how fast speed is changing you.
Never know when you may need to hit that button. You know person to accelerate at maximum speed to under, acceleration consider again.
McCallister‘s 40-yard dash while his average speed is twenty eight point one seven feet per second. His instantaneous speed varies . He starts with zero speed, that increases his speed or accelerates until he reaches a top speed.
Let’s say hypothetically 31 point 5 feet per second. If we know how long it takes McAllister to hit his top speed let’s assume 1.2 seconds, then it’s possible to calculate his acceleration as the change in speed. Divided by the time acceleration is the change in velocity per unit time, which with blue
comparative velocity was the change in this distance per unit time.
In this case 31 point 5 feet per second divided by 1.2 seconds means, that McCallister’s acceleration was 26.2 5 feet per second. Squared we want to reach our top velocity as quickly as possible. Someone with very low acceleration might take 5 yards to reach top velocity, while someone with great acceleration might be able to reach top velocity, pass that distance on the playing field acceleration or the ability to reach top speed quickly maybe a running backs most.
Potent weapon if you can accelerate, you’re going to get the top speed even. If your top speed isn’t as fast as the guy that’s faster than you, you’re going to beat him to his top speed. Therefore you’re going to be more successful than he is without kinematics, it’s concepts of position velocity, acceleration NFL running backs would be easy prey, football itself wouldn’t be nearly as fun to watch.