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Rectilinear Velocity In Sports

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In sports, such as track and tennis, velocity is at the forefront of success: the greater the velocity, the greater the chance at winning. Linear velocity is calculated by dividing the distance between two positions of an object by the amount of time elapsed between those subsequent points (Lawler 2018). Keep in mind, however, that there is curvilinear velocity and rectilinear velocity. Both refer to shape of the path that an object takes. For instance, rectilinear velocity, which this laboratory session focuses on, is the speed of an object in a completely linear path; whereas, the latter engages in curved pathway. There are several factors that may affect the velocity of an object. Lever length can actually increase an object’s velocity …show more content…

The kinematic chain is a specific sequence of joint movements from the most central to the most peripheral axis in order to increase the rapid movement of hands, feet, or handheld equipment (Lawler 2018). In order to maximize performance and decrease the risk of injury, optimal activation of every link in the kinetic chain is essential (Elliot, 2006).
Understanding the influences that anatomical structures and movements have on velocity are critical in improving sport performance. If a difference in performance is seen between two individuals, a video analysis can be conducted to determine if one player is not engaging in the optimal range of movement around a joint. Video analysis can also identify if the exercise equipment in use is advantageous or not. If the equipment being used elongates a lever arm, then that would be an advantage for a tennis or baseball player.
In this lab we will analyze four different trials of a tennis serve in order to determine which of the trials had the greatest linear velocity. In addition to this, we sought out to understand why each trial had a difference in velocity. Differences may have arisen from air resistance and other environmental factors, but it we are primarily concerned with the effect that arm length has on velocity. In addition to this, we will observe if the kinematic chain is in practice and if it has a relationship with the velocity of the …show more content…

This meter stick was quantified by the number of pixels it encapsulated and served as a reference distance for future calculations. This was calculated by picking two points- one point on the bottom left corner and the other on the upper right corner of the meter stick- and then calculating the number of pixels that make up the X-axis and Y-axis distances between both points. Through the use of the Pythagorean Theorem, the hypotenuse was calculated. This value would essentially be the “true” number of pixels the meter stick represents. These steps were done once more for the vertically positioned meter stick. A discrepancy between both vertical and horizontal values for the meter stick arises, which is resolved by calculating the average of both the horizontal and vertical meter stick

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Analysis - To initially get the position vs time graph, the whiteboard ramped was marked every half meter and four time trials were done going to every mark. the times were then averaged and plotted on a graph. With each average time a velocity was calculated by distance/time and those were averaged to find the velocity (because the buggy was a constant speed there is only need for one velocity). With this, it turned out the slope of the position time graph was the velocity. If there was a non constant velocity, the derivative of the position time graph would yield the velocity for the specific time.

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Summary of “Forces on a baseball” by NASA.gov The article, “Forces on a baseball,” by NASA.gov, presents the facts on what makes a baseball fly threw the air a baseball. NASA.gov presents readers with the facts and breakdown drag,lift and weight, while explaining the air and temperature can affect how high and far the ball goes. The article references Newton’s first law of motion, “According to Newton's first law of motion, a moving baseball will keep moving in a straight line unless it is affected by another force.” As the article concludes, the author highlights that if the ball is perfectly round and smooth, its center of pressure will be exactly in the middle point.

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In conclusion, air pressure has a direct influence on the distance that the ball will travel when thrown. The hypothesis stated that if pressure is added to the football, then the distance the ball projects will increase when distance is a function of pressure. Based on the data that was collected from the experiment, the hypothesis was supported. When the football had more air inside, it went the farthest distance compared to the other two pressures that data was collected from.

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Ball 1 increased distance more than a miraculous 10 meters on trial 2. Ball 2 from trial 1 to trial 2, significantly dropped about a poor 7 meters. The average distance from ball 1, was a shocking 30 meters. The average distance from ball 2, was a low 12.6 meters.

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As the arm rotates, the things in the thing experience centripetal acceleration which causes it to move out. The initial release position is such that the beam on the counterweight side makes an angle of 45° with the vertical. There is a lot of math required in finding the trajectory of the arms through. The trebuchet reached Europe during the early Middle Ages, or Dark Ages, in 500 AD and was used extensively by the French.

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PACE TECHNICAL PAPER ROUGH DRAFT This experiment was conducted in an attempt to have wooden baseball bats brought back to NCAA and high school and children’s leagues, too. The experiment idea was to set up a pendulum where the bat swung down and hit the ball in the same spot every time. Then I measured where the ball hit the ground.

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Attempting to hit the ball at a certain height and angle. Therefore resulting in a more powerful and effective

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Position of buggy at every 1 second from 0 cm to 80 cm Time (s) 1 2 3 4 Position (cm) 65 cm 44.9 cm 24.5 cm 8.9 cm Table 2. Position of buggy at every 1 second from 80 cm to 0 cm Analysis:

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Multiple adaptation can be made to the task as well to help or challenge facilitation, such as the size and weight of the dart or ball, the distance and size of the target, the position being thrown from

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The specific motion used for this analysis is a baseball pitch by Jake Arrieta who plays for the Chicago Cubs (https://giant.gfycat.com/BelatedWeirdKookaburra.gif). His characteristics: male, height is six foot four inches, weighs 225 pounds, pitches and bats with right hand, age is 30 years old, and has been playing for seven years. In order to produce enough force, the pitch has to go through multiple phases in order to generate it.

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Pitch speed has a large role in how far a baseball is hit. The faster the ball is pitched, the harder it will bounce off the bat. Bat speed is another obvious factor in baseball flight. The harder the bat is swung, the faster the ball will come off it. These two things will only make the ball go far if it has a good angle of elevation.

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To further improve on the link position, I can improve my recovery times by continuing my strength regime and calorie surplus, incorporating cardiovascular activities such as rowing, cycling and running to improve the anaerobic energy systems. Conclusion In summary, I am suited most to the link position, based on the results from the lab experiments (fig. 1 & 2), they correlate with results from a lab experiment (fig. 3, 4, 5).

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Then it changes when it starts going down. Then when going down the velocity changes and does something different. my conclusion is when the ball is going up there is two ways of velocity. Then when it gets to the top it turn equals, after that when it is going down it changes the way of velocity when it was going

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One of the other examples of physics that is used in lacrosse is momentum, momentum plays an important role in lacrosse because without it we wouldn’t be able to pass, shoot, or catch the ball. The way that we change the momentum when we are playing is by the amount of push and pull that we use on our sticks, this causes how much energy is transferred into the head of our lacrosse sticks which then turns into velocity and the more momentum we have the high velocity we put into our passes, catches, and

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This is when see that an athlete with a kinematics understanding will perform better as the athlete with an understanding is able to tell the right angle to kick the ball before, or during the game. When the athlete without an understanding cannot as they have no idea where to kick the ball during the play. The claim is supported throughout the

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