Rudelius, W. (2013). “Prince Sports, Inc.: Tennis Racquets for Every Segment”. Marketing. 11th Edition. New York, NY: McGraw-Hill Companies Inc.…
Overview: In this lab, we will test balls made of various materials. The matter that composes the ball must store energy on impact and then release the energy in a way that allows elastic recoil, or bounce. In addition to elasticity, there is also a relationship between the height from which the ball is dropped and the height of the bounce. We will measure and graph the relationship of those two variables.…
Hypothesis: I believe that the racket ball will have a faster average speed than the tennis ball for both distances because the racket ball is bouncy.…
Benefiting Children: This shot will definitely benefit children when learning racquetball because little kids love to hit the ball hard and this shot will give them the opportunity to do so while being productive while playing a game. It also teaches them a defensive shot, and the benefits of using defensive shots in games.…
Environmental forces have come a long way in the last fifty years. The sport of tennis has gained massive participation up to 43 percent. Thus, making tennis the fastest growing traditional individual sport in the world. Prince is happy to be there to meet the demands of these players by offering different types of racquets –performance, recreational, and junior. From the company spending a lot of time and money on market research, Prince offers tennis racquets and other tennis…
Think about different materials that are used to make sports balls. Why don’t we use just one type of material for tennis balls, baseballs, and golf balls? Since each ball must behave differently in play, the material making up each one must be different, too. In this experiment, you will characterize how different materials behave when they are dropped.…
To be successful in the game of tennis is dependent on the player’s technique as well as biomechanics which play a vital role in stroke production. A fundamental mechanical structure is founds in all tennis strokes.11 The backswing provides the distance. Tennis players need to be able to control the direction of the racket and the timing of the entire movement. The skill level of the tennis player depends largely on the mechanics of their forehand swing. The force of impact is determined by the racket speed at the moment it comes in contact with the ball. When maximum distance is used for accelerating that is when maximum velocity can be obtained. Body weight support is necessary for the forehand drive because shifting weight when striking the ball will increase ground reaction force to the body and the ball. A player wants to be balanced to direct power and energy without losing control. Forward momentum will carry the racket through the ball after contact. The follow through helps prepare the player for the next stroke. It should be long and the arm and racket should wrap around the body. It dissipates kinetic energy off the racket and that is when the player wants to arrive at the right point and balanced to be ready for the next stroke and to be able to play the ball back. The player’s body must absorb the remaining energy of the racket and the…
For Science Fair, Steven Bowman, my partner, and I decided to test which mass baseball would travel farther when launched from a pitching machine. We decided to use three different types of baseballs. We used an official baseball, a tee-ball (rubber ball), and a plastic, hollow ball (wiffle ball). Before we started the experimentation we researched all the theories that were involved in the experiment. Aerodynamics played a key role in the experiment because based on how the air traveled along the outside of the ball can cause it to many sorts of things while in the air. The seams were a main factor with the baseball because the seams can disrupt airflow…
The tennis serve is one of the most scrutinized athletic motions in all of sports. It is extremely complex and involves many parts that must move in synchronization in order to execute a proper serve. The mechanics of the serve need to be solid because there is a very slim margin for error. When done effectively a serve will have good placement and power to start the point where the server is in an offensive position and can control the rally. The beauty of the serve is that even though everyone tries to teach it in a technical way, no two players will serve exactly the same. How a person serves is influenced by several factors such as height, strength, and coordination. Taller players can hit the ball with a more downward trajectory and with a lot more power than shorter players who have to use a flatter trajectory and more spin. Less coordinated players tend to try and use fewer muscle groups so that they have less moving parts to worry about and by doing this they limit their serving abilities. There is a lot of variation so for the purpose of this paper I focused on the flat serve which generates the most velocity and power of all the service motions.…
The Great Depression, a notorious period marked as the most severe economic downturn in the 1930s, affecting numerous countries, including the United States. Characterized by widespread business failures and a significant influx in unemployment rates, this time period saw countless individuals losing their jobs and property, with little hope for recovery. The Great Depression is estimated to have resulted in the deaths of 5-10 million people. Despite the grim reality, President Franklin D. Roosevelt introduced the New Deal: a series of programs and reforms aimed at alleviating the impact of the Great Depression and restoring the American economy. However, the New Deal has sparked ongoing debates regarding its effectiveness and scope.…
Tennis is a highly competitive sport with participation in over 200 countries throughout the world. It is a non-contact racquet sport which requires aspects such as strength, power, speed, coordination and agility. Like any sport, tennis places specific demands on the body which can predispose any player to injury. These demands placed on the body result in injuries specific to the game. It is said by Pluim et al (2006) that although many injuries that occur in tennis are common in other sports, tennis has its own unique profile of injuries. (1) Injuries such as lateral ankle sprains, calf strains, lower back pain, tennis toe, shoulder impingement, lateral epicondylitis (tennis elbow), ulnar collateral ligament tears and wrist strains are all…
Overview: Basketball is a team sport consisting of two teams of five players each trying to score by advancing the ball up the court by dribbling or passing and then shooting a ball through a hoop elevated 10 feet above the ground. The game is played on a rectangular floor called the court, and there is a hoop at each end. The game starts at the middle of the court and is called the tip off. The referee tosses the ball in the air in between two players (one from each team), and the players try to tip it to one of their teammates who are circled around them. The team that wins the tip off will get the ball to start the 3rd quarter, and the opposing team will get the ball to start the 2nd and 4th quarters. The game is split into quarters, each quarter lasting 8 minutes. The court is divided into two main sections by the mid-court line. If the offensive team puts the ball into play behind the mid-court line (half court), it has ten seconds to get the ball over the mid-court line. If it doesn't, then the defense gets the ball. Once the offensive team gets the ball over the mid-court line, it can no longer have possession of the ball in the area in back of the line. If it does, the defense is awarded the ball. Each shot made is worth two points, unless the shooter is behind the three point line, then they are awarded three points. When a player is fouled in the act of shooting, he will go to the free throw line to shoot free throws. If the player made the shot and gets fouled, the shot counts and he is awarded one free throw attempt. If he misses the shot while fouled, he gets two free throw attempts unless he was shooting outside the three point line, then he is awarded three attempts. Each free throw made counts as one point for the offensive team. After a foul or a made shot, the opposing team gains possession of the ball and has five seconds to pass it in from out of bounds. After a jump ball the team with the possession arrow will…
“America”, recognized worldwide for it’s engrossing mass media and lavish lifestyle, has now gained the reputation as one of the largest drug consumers to this day. Drugs are now seen as a major problem in the American way of life, but this is no new dilemma. Drugs themselves have existed in America since the landing of the Pilgrims to Plymouth Rock, but never before have they augmented in such a proportion until this past century. The first piece of legislation which would later lead to the “war on drugs” was the Harrison Tax Act of 1914, in which it restricted the sale of heroin and was also later used to prohibit the sale of cocaine. In January 1919, the United States passed the 18th Amendment, which prohibited the sale, manufacture, and transportation of alcohol on a national level. June 1930, the Federal Bureau of Narcotics was created under the leadership of Harry Anslinger. By 1933 Depression-era gangsters and bootleggers had gotten so out of hand that the 18th Amendment (prohibition on alcohol) was repealed. A new national enforcement framework came into view with the Marijuana Tax Act of 1937, which attempted to tax marijuana into oblivion, as Tom Head from Ask.com emphasized that marijuana “with it’s alleged perception might be a "gateway drug" for heroin users”. The Boggs Act of 1951 had established a mandatory federal sentence for possession of marijuana, cocaine, and opiates. During the 1960’s drugs became symbols of youthful rebellion, social upheaval, and political dispute. When the Nixon administration came into office in 1970 they looked for ways to block the import of marijuana from Mexico, they imposed strict traffic searches along on the U.S.-Mexican border in an effort to crack down on marijuana. While dealing with marijuana at home the Nixon administration was also forced to look upon the soldiers who were over sea in Vietnam. Statistics provided by Shmoop detail the numbers of soldiers who became drug users while on duty, “military police…
Heat stress in sport; Exercise thermoregulation; Rational analysis of heat stress; WBGT; Risk assessment for exertional heat illness…
The forehand stroke is the most popular in tennis. Stand facing the net, knees slightly bent, weight evenly distributed and forward on the balls of your feet. The racket is held in front of your body, elbows in close and parallel to the ground. The racket is supported with your free hand. From the turn position, the racket goes back until it is parallel to the ground- the angle between forearm and racket still remaining the same. The butt of the racket is pointing toward the net and the racket is on edge. The ball is contacted opposite the left leg, approximately waist high; the arm is relatively straight and the wrist firm. The follow through is a long, continuous sweeping motion finishing high with the racket butt opposite the left eye, (for right handers).…