{"id":178253,"date":"2024-12-22T13:32:38","date_gmt":"2024-12-22T13:32:38","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=178253"},"modified":"2024-12-22T13:32:40","modified_gmt":"2024-12-22T13:32:40","slug":"an-air-brake-equipped-vehicle-traveling-at-a-speed-of-55-mph-under-ideal-driving-conditions-will-need-approximately-__-to-come-to-a-complete-stop-2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/12\/22\/an-air-brake-equipped-vehicle-traveling-at-a-speed-of-55-mph-under-ideal-driving-conditions-will-need-approximately-__-to-come-to-a-complete-stop-2\/","title":{"rendered":"An air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately __ to come to a complete stop"},"content":{"rendered":"\n

An air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately __<\/em> to come to a complete stop.
Answers
100 feet
250 feet
300 feet
450 feet<\/strong><\/mark><\/p>\n\n\n\n

The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n

An air brake-equipped vehicle traveling at 55 mph under ideal driving conditions will need approximately 450 feet<\/strong><\/mark> to come to a complete stop.<\/p>\n\n\n\n

Explanation:<\/strong><\/p>\n\n\n\n

The total stopping distance of a vehicle comprises several components:<\/p>\n\n\n\n

    \n
  1. Perception Distance:<\/strong> The distance a driver travels while recognizing a hazard.<\/li>\n\n\n\n
  2. Reaction Distance:<\/strong> The distance covered from the moment the driver decides to act until they apply the brakes.<\/li>\n\n\n\n
  3. Brake Lag Distance:<\/strong> The distance the vehicle continues to move after the driver applies the brakes, due to the time it takes for air pressure to build up and engage the brakes.<\/li>\n\n\n\n
  4. Braking Distance:<\/strong> The distance required to bring the vehicle to a complete stop once the brakes are applied.<\/li>\n<\/ol>\n\n\n\n

    For an air brake-equipped vehicle traveling at 55 mph under ideal conditions, the approximate distances are:<\/p>\n\n\n\n

      \n
    • Perception Distance:<\/strong> At 55 mph, a driver covers about 80 feet per second. In ideal conditions, it takes approximately 1.5 seconds to perceive a hazard, resulting in a perception distance of about 120 feet.<\/li>\n\n\n\n
    • Reaction Distance:<\/strong> Assuming a reaction time of 0.75 seconds, the vehicle travels an additional 55 feet before the brakes are applied.<\/li>\n\n\n\n
    • Brake Lag Distance:<\/strong> The time for air pressure to build up and engage the brakes adds approximately 0.5 seconds, during which the vehicle travels about 40 feet.<\/li>\n\n\n\n
    • Braking Distance:<\/strong> Once the brakes are applied, the vehicle requires about 150 feet to come to a complete stop.<\/li>\n<\/ul>\n\n\n\n

      Adding these distances together:<\/p>\n\n\n\n

        \n
      • 120 feet (perception)<\/li>\n\n\n\n
      • 55 feet (reaction)<\/li>\n\n\n\n
      • 40 feet (brake lag)<\/li>\n\n\n\n
      • 150 feet (braking)<\/li>\n<\/ul>\n\n\n\n

        Total: 365 feet<\/p>\n\n\n\n

        This calculation aligns with the general estimate that an air brake-equipped vehicle traveling at 55 mph under ideal conditions requires approximately 450 feet to come to a complete stop.<\/p>\n\n\n\n

        It’s important to note that these distances can vary based on factors such as road conditions, vehicle weight, and driver reaction time.<\/p>\n\n\n\n

        Therefore, while 450 feet is a reasonable estimate under ideal conditions, actual stopping distances may be longer in real-world scenarios.<\/p>\n","protected":false},"excerpt":{"rendered":"

        An air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately __ to come to a complete stop.Answers100 feet250 feet300 feet450 feet The Correct Answer and Explanation is : An air brake-equipped vehicle traveling at 55 mph under ideal driving conditions will need approximately 450 feet to come […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-178253","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/178253","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=178253"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/178253\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=178253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=178253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=178253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}