{"id":6748,"date":"2024-04-15T02:33:35","date_gmt":"2024-04-15T02:33:35","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=6748"},"modified":"2024-04-15T02:33:35","modified_gmt":"2024-04-15T02:33:35","slug":"a-ball-which-is-thrown-upwards-returns-to-the-ground-describing-a-parabolic-path-during-its-flight-a-vertical-component-of-velocity-remains-constant-b-horizontal-component-of-velocity-remains-const","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/a-ball-which-is-thrown-upwards-returns-to-the-ground-describing-a-parabolic-path-during-its-flight-a-vertical-component-of-velocity-remains-constant-b-horizontal-component-of-velocity-remains-const\/","title":{"rendered":"A ball which is thrown upwards, returns to the ground describing a parabolic path during its flight A. Vertical component of velocity remains constant B. Horizontal component of velocity remains constant C. Speed of the ball remains constant D. Kinetic energy of the ball remains constant"},"content":{"rendered":"<p>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6a9cf967c6944\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    Vertical component of velocity remains constant                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"true\">\r\n                    Horizontal component of velocity remains constant                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    Speed of the ball remains constant                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    Kinetic energy of the ball remains constant                <\/div>\r\n                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--more--><\/p>\n<p>The correct answer is: <strong>B. Horizontal component of velocity remains constant<\/strong><\/p>\n<p>The vertical component of velocity changes because of the acceleration due to gravity. The horizontal component of velocity does not change because there is no force acting on the ball in the horizontal direction.<\/p>\n<p>The speed of the ball changes because the vertical component of velocity is changing. The kinetic energy of the ball changes because the speed of the ball is changing.<\/p>\n<p>Here is a more detailed explanation:<\/p>\n<p>When a ball is thrown upwards, it initially has both horizontal and vertical velocity components. The horizontal component of velocity is not affected by gravity, so it remains constant throughout the flight of the ball. The <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\">\r\n                    <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n  <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" class=\"telegram-channel-button\">\r\n            <span class=\"telegram-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 496 512\">\r\n                    <path fill=\"white\" d=\"M248,8C111,8,0,119,0,256s111,248,248,248s248-111,248-248S385,8,248,8z M362,177L320,367c-3,14-10,18-20,14l-56-41l-27,26 c-3,3-5,5-10,5l4-63L323,196c5-5-1-7-8-3l-98,62l-42-13c-9-3-10-9,2-14l162-63C351,160,365,164,362,177z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Join Our Telegram Channel\r\n        <\/a>\r\n    <\/div>   <\/div> vertical component of velocity is affected by gravity, so it decreases as the ball rises and increases as the ball falls. The speed of the ball is the magnitude of the total velocity, which is equal to the square root of the sum of the squares of the horizontal and vertical components of velocity. The speed of the ball changes because the vertical component of velocity is changing. The kinetic energy of the ball is equal to one half the product of the mass of the ball and the square of its speed. The kinetic energy of the ball changes because the speed of the ball is changing.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Join Our Telegram Channel Subscribe on YouTube<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[645],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>A ball which is thrown upwards, returns to the ground describing a parabolic path during its flight A. Vertical component of velocity remains constant B. Horizontal component of velocity remains constant C. Speed of the ball remains constant D. 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