{"id":6754,"date":"2024-04-15T02:33:41","date_gmt":"2024-04-15T02:33:41","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=6754"},"modified":"2024-04-15T02:33:41","modified_gmt":"2024-04-15T02:33:41","slug":"the-angle-of-friction-is-a-the-ratio-of-the-friction-and-the-normal-reaction-b-the-force-of-friction-when-the-body-is-in-motion-c-the-angle-between-the-normal-reaction-and-the-resultant-of-normal","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-angle-of-friction-is-a-the-ratio-of-the-friction-and-the-normal-reaction-b-the-force-of-friction-when-the-body-is-in-motion-c-the-angle-between-the-normal-reaction-and-the-resultant-of-normal\/","title":{"rendered":"The angle of friction is: A. The ratio of the friction and the normal reaction B. The force of friction when the body is in motion C. The angle between the normal reaction and the resultant of normal reaction and limiting friction D. The force of friction at which the body is just about to move"},"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_6a9d4f887328b\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    The ratio of the friction and the normal reaction                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    The force of friction when the body is in motion                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"true\">\r\n                    The angle between the normal reaction and the resultant of normal reaction and limiting friction                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    The force of friction at which the body is just about to move                <\/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 C. The angle of friction is the angle between the normal reaction and the resultant of normal reaction and limiting friction.<\/p>\n<p>The angle of friction is a measure of the force of friction between two surfaces. It is defined as the angle between the normal reaction and the resultant of normal reaction and limiting friction. The limiting friction is the maximum value of the force of friction that can be exerted between two surfaces.<\/p>\n<p>The angle of friction can be calculated using the following formula:<\/p>\n<p>$\\theta = \\arctan \\left(\\frac{f_f}{N}\\right)$<\/p>\n<p>where $\\theta$ is the angle of friction, $f_f$ is the force of <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 <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> 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> friction, and $N$ is the normal reaction.<\/p>\n<p>The angle of friction is important in many engineering applications, such as the design of brakes and clutches. It is also used in the determination of the coefficient of friction.<\/p>\n<p>Option A is incorrect because the ratio of the friction and the normal reaction is the coefficient of friction.<\/p>\n<p>Option B is incorrect because the force of friction when the body is in motion is the kinetic friction.<\/p>\n<p>Option D is incorrect because the force of friction at which the body is just about to move is the limiting friction.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>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>The angle of friction is: A. The ratio of the friction and the normal reaction B. 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