A student trying to test the braking ability of her car determined that she needed 19.5 ft more to stop her car when driving downhill on a road segment of 5% grade than when driving downhill at the same speed along another segment of 3.5% grade. Determine the speed at which the student conducted her test and the braking distance on the 5% grade if the student is traveling at the test speed in the uphill direction.
A student trying to test the braking ability of her car determined that she needed 19.5 ft more to stop her car when driving downhill on a road segment of 5% grade than when driving downhill at the same speed along another segment of 3.5% grade. Determine the speed at which the student conducted her test and the braking distance on the 5% grade if the student is traveling at the test speed in the uphill direction.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
A student trying to test the braking ability of her car determined that she
needed 19.5 ft more to stop her car when driving downhill on a road
segment of 5% grade than when driving downhill at the same speed
along another segment of 3.5% grade. Determine the speed at which the
student conducted her test and the braking distance on the 5% grade if
the student is traveling at the test speed in the uphill direction.
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