A body is thrown such that at the topmost point of its motion, its kinetic energy and potential energy are equal. The horizontal distance it covers (range) is given as 200 meters, and we are tasked with finding the maximum height it reaches.
When a body follows a projectile motion, its total energy is distributed between kinetic energy (due to its speed) and potential energy (due to its height). At the topmost point, since kinetic energy and potential energy are equal, half of the total energy is used to reach the height, and the other half contributes to the horizontal motion.
Using the properties of projectile motion, it can be determined that the maximum height reached by the body is one-fourth of the total horizontal distance covered. Therefore, if the range is 200 meters, the height will be:
200÷4=50 meters.200 \div 4 = 50 \, \text{meters}.200÷4=50meters.
Hence, the body rises to a height of 50 meters .
Question : Assertion: Energy conservation is essential for sustainable development as it reduces greenhouse gas emissions and promotes energy security.
Reason: Energy conservation involves using energy efficiently and minimizing wasteful consumption.
Option 1: Both assertion and reason are correct, and the reason is the correct explanation of the assertion.
Option 2: Both assertion and reason are correct, but the reason is not the correct explanation of the assertion.
Option 3: Assertion is correct, but the reason is incorrect.
Option 4: Assertion is incorrect, but the reason is correct.
Question : Play has been defined as behaviour for the purpose of fun and enjoyment with no utilitarian or abstract coal in mind. It is suggested that play must serve a number of functions including allowing us to use up surplus energy; it let's rehearse skills; it serves a recuperative; and it helps us to reduce anxiety. A game is a playful competition whose outcome is determined by physical skill, strategy or chance. In play rules are less prevalent then in games, but latter involves competition.
Sports is institutionalized game. It is organised in terms of governing bodies, leagues ,sponsors and managers. It involves technology development in equipment, clothing and facilities. It has symbolic dimension in the form of a ceremony ritual display and secrecy. Finally it has an educational aspect and involves a degree of physicality.
Exercise is a form of physical activity carried out for the purpose of health and fitness the main difference between sport and exercise is competition; also exercise typically does not involve the same degree of institutionalization that characterizes sport.
Sports psychology and exercise psychology can be respectively define as study of thoughts, feelings and behaviour in relation to either the sporting or the exercise domain sport and exercise psychology are actually two endeavours.
The first involves the work of getting information about the role of mental factors in physical domains. It is about the pure science of doing research, including theory building and conducting investigations. In contrast the second endeavour is concerned with applied science. In broad terms given the certanality of competition to sport the sports psychologist is to help athletes to enhance the performance. For the applied exercise psychologist the focus is to help people to lead physically and mentally healthy lives and increasing participation in And enjoyment from physical activity.
The passage describes the sport to have:
Option 1: Aur technical dimension
Option 2: A symbolic dimension
Option 3: An Educational dimension
Option 4: An institutionalized dimension
According to the passage, the main difference between exercise and sports
Option 1: Competition
Option 2: Physical activity
Option 3: Institutionalization
Option 4: Health and fitness
Play serves as a number of functions:
Option 1: Rehearsing skills
Option 2: Recuperative function
Option 3: Reducing anxiety
Option 4: All the above
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