(Originais Teachy 2023) - Question Medium of Physical Education

The practice of hockey extends across different cultures around the world, being adapted in their styles and rules for ice rinks, grass fields, and even aquatic environments. Aspects such as technical skills, game strategy, and understanding of the rules are fundamental for the players' performance. In the context of an ice hockey match, the contact force between the stick and the puck, combined with the speed of the movement, determine the trajectory and the kinetic energy involved in the athletes' actions. Consider a player who applies a tangential force of 250 N using his hockey stick at an angle of 30° relative to the horizontal plane when making a pass. Disregarding the effects of air resistance and considering that the puck has a mass of 150 g, determine the acceleration of the puck at the moment of the pass and the component of the force that contributes to the change in kinetic energy of the puck in the direction of movement.

Imagine that you are a detective and need to uncover a mystery about your own body. To solve this mystery, you must pay close attention to the signals your body sends when you move and play. Think about a game or activity that you really enjoy doing, and describe how your body moves during this play. Which parts of your body do you use the most? And what movements can you easily make? Now, thinking about this game, write about a superpower that you would like to have to further improve your ability to move and why this superpower would be important to you.

During the last practical class, the 3rd year high school students participated in an 'Ultimate Frisbee' tournament, an invasion sport that combines elements of American football, basketball, and soccer, requiring cooperation and team strategy to advance and score points. Considering the concepts of motion kinematics, where kinematics studies movement purely in terms of space and time, without considering the causes of that movement, the students observed that, to throw a frisbee, it is necessary to calculate the force and direction of the throw, taking into account the distance and wind speed. If a player wants to throw a frisbee, with a mass of 175 g, so that it travels a horizontal distance of 30 m and at a constant height of 2.5 m above the ground, disregarding air resistance and considering the local acceleration due to gravity as 9.8 m/s², what should be the initial velocity of the frisbee at the time of the throw? Additionally, suppose the player is able to apply a constant force to the frisbee during the throw. Calculate the initial velocity required to achieve this feat.

In the sports context, ethics plays a fundamental role in ensuring integrity, respect, and justice in competitions. Ethical conduct in sports involves compliance with rules, the appreciation of honesty, and the promotion of sportsmanship. Considering the importance of ethics in sports practice, discuss how the violation of ethical principles, such as doping or match-fixing, can affect the credibility of sports and the development of athletes. Also, analyze the responsibility of different sports agents, including athletes, coaches, officials, and regulatory bodies, in promoting a culture of integrity and ethics in sports, and how these agents can act to prevent and combat unethical practices in sports. Relate your analysis to practical examples of ethical violations that have had a significant impact on the sports world and discuss the consequences of these violations for the sports community and society at large.