{"id":6678,"date":"2024-04-15T02:32:30","date_gmt":"2024-04-15T02:32:30","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=6678"},"modified":"2024-04-15T02:32:30","modified_gmt":"2024-04-15T02:32:30","slug":"the-following-statement-is-one-of-the-laws-of-dynamic-friction-a-the-force-of-friction-always-acts-in-a-direction-opposite-to-that-in-which-a-body-is-moving-b-the-magnitude-of-the-kinetic-friction-b","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-following-statement-is-one-of-the-laws-of-dynamic-friction-a-the-force-of-friction-always-acts-in-a-direction-opposite-to-that-in-which-a-body-is-moving-b-the-magnitude-of-the-kinetic-friction-b\/","title":{"rendered":"The following statement is one of the laws of Dynamic friction A. The force of friction always acts in a direction opposite to that in which a body is moving B. The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction C. For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed D. All the above"},"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_6a990d903b48d\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    The force of friction always acts in a direction opposite to that in which a body is moving                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"true\">\r\n                    All the above                <\/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>D. All <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> the above<\/strong><\/p>\n<p>The laws of dynamic friction are:<\/p>\n<ol>\n<li>The force of friction always acts in a direction opposite to that in which a body is moving.<\/li>\n<li>The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two <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> surfaces. The ratio being slightly less than that in the case of limiting friction.<\/li>\n<li>For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed.<\/li>\n<\/ol>\n<p>The first law of dynamic friction states that the force of friction always acts in a direction opposite to that in which a body is moving. This means that the force of friction always opposes the motion of a body. For example, if you are pushing a box across the floor, the force of friction will be acting in the opposite direction to the motion of the box.<\/p>\n<p>The second law of dynamic friction states that the magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction. This means that the force of friction is proportional to the normal reaction between two surfaces. The normal reaction is the force that is perpendicular to the surface of contact. The coefficient of kinetic friction is a constant that is determined by the materials of the two surfaces in contact.<\/p>\n<p>The third law of dynamic friction states that for moderate speeds the force of friction remains constant but decreases slightly with the increase of speed. This means that the force of friction is constant for moderate speeds, but it decreases slightly with the increase of speed. This is because the surfaces of the two objects in contact become smoother as the speed increases.<\/p>\n<p>I hope this helps!<\/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 following statement is one of the laws of Dynamic friction A. The force of friction always acts in a direction opposite to that in which a body is moving B. The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction C. 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